{
  "id": "fretless_bass",
  "name": "Fretless electric bass",
  "family": "electric_strings",
  "class": "bass",
  "axes": {
    "pitchFix": -1,
    "sustain": 0,
    "polyphony": 0,
    "harmonicity": 0,
    "register": -1,
    "range": 1,
    "articulation": 2,
    "transduction": 1,
    "dynamics": 1
  },
  "short": "fretless bass",
  "parts": [
    {
      "id": "electric_technique",
      "name": "Playing technique",
      "variants": [
        {
          "id": "electric_bass_walking",
          "name": "Walking bass line",
          "applies_to": [
            "electric_bass",
            "semi_hollow_bass",
            "fretless_bass",
            "short_scale_bass"
          ],
          "descriptors": [
            "walking"
          ],
          "match_tokens": [
            "electric",
            "picked"
          ],
          "canonical_tags": [
            "jazz-canonical"
          ],
          "default": true
        },
        {
          "id": "electric_bass_pocket",
          "name": "Pocket fingerstyle locked",
          "applies_to": [
            "electric_bass",
            "semi_hollow_bass",
            "fretless_bass"
          ],
          "descriptors": [
            "pocket",
            "fingerstyle",
            "locked"
          ],
          "match_tokens": [
            "electric",
            "rhythm-section-pocket",
            "picked"
          ],
          "canonical_tags": [
            "soul",
            "funk",
            "afrobeat"
          ]
        },
        {
          "id": "electric_bass_slap_pop",
          "name": "Slap-and-pop",
          "applies_to": [
            "electric_bass",
            "semi_hollow_bass",
            "fretless_bass"
          ],
          "descriptors": [
            "slapped",
            "popped",
            "percussive"
          ],
          "match_tokens": [
            "electric",
            "slappy",
            "percussive-attack"
          ],
          "canonical_tags": [
            "funk"
          ]
        }
      ],
      "_fromFamily": true
    },
    {
      "id": "amp_make",
      "name": "Amplifier archetype",
      "variants": [
        {
          "id": "amp_unspecified",
          "default": true,
          "name": "Unspecified",
          "applies_to": [
            "electric_guitar_single_coil",
            "electric_guitar_humbucker",
            "semi_hollow",
            "archtop_jazz",
            "twelve_string_electric",
            "baritone_electric",
            "electric_bass",
            "semi_hollow_bass",
            "short_scale_bass",
            "fretless_bass",
            "pedal_steel"
          ],
          "descriptors": [],
          "match_tokens": [
            "electric"
          ]
        },
        {
          "id": "amp_american_ampeg_b15",
          "name": "Ampeg B-15 flip-top (American 60s bass)",
          "applies_to": [
            "electric_bass",
            "semi_hollow_bass",
            "short_scale_bass",
            "fretless_bass"
          ],
          "descriptors": [
            "ampeg-b15-amp",
            "american-60s-bass-amp",
            "flip-top-character",
            "rounded-low-end"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "tube-amplification"
          ],
          "canonical_tags": [
            "soul",
            "rhythm-and-blues",
            "motown",
            "jazz-canonical"
          ]
        },
        {
          "id": "amp_american_ampeg_svt",
          "name": "Ampeg SVT (American post-69 bass rock)",
          "applies_to": [
            "electric_bass",
            "semi_hollow_bass",
            "fretless_bass"
          ],
          "descriptors": [
            "ampeg-svt-amp",
            "rock-bass-amp",
            "300-watt-stack",
            "high-headroom"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "tube-amplification"
          ],
          "canonical_tags": [
            "arena-rock"
          ]
        },
        {
          "id": "amp_modern_modeling",
          "name": "Modeling amplifier (Kemper / Fractal / Katana)",
          "applies_to": [
            "electric_guitar_single_coil",
            "electric_guitar_humbucker",
            "semi_hollow",
            "archtop_jazz",
            "twelve_string_electric",
            "baritone_electric",
            "electric_bass",
            "semi_hollow_bass",
            "short_scale_bass",
            "fretless_bass"
          ],
          "descriptors": [
            "modeled-amp",
            "digital-amplification",
            "profile-based",
            "modern-rig"
          ],
          "match_tokens": [
            "electric"
          ],
          "canonical_tags": [
            "djent",
            "modern-metal"
          ]
        }
      ],
      "_fromFamily": true
    },
    {
      "id": "fretless_use",
      "surface": false,
      "name": "Use",
      "variants": [
        {
          "id": "fretless_jazz",
          "default": true,
          "name": "Jazz / fusion solo",
          "descriptors": [
            "singing",
            "vocal-imitating",
            "virtuoso"
          ],
          "match_tokens": [
            "jazz-trained",
            "electric"
          ]
        },
        {
          "id": "fretless_rock",
          "name": "Art rock",
          "descriptors": [
            "low-mid-rich-spectrum",
            "expressive",
            "distinctive"
          ],
          "match_tokens": [
            "rock-context",
            "electric",
            "low-register"
          ]
        }
      ]
    },
    {
      "id": "fretless_bass_construction",
      "name": "Construction",
      "variants": [
        {
          "id": "fretless_bass_conversion",
          "default": true,
          "name": "Fretless conversion (epoxy fingerboard)",
          "descriptors": [
            "distinctive-mwah",
            "twentieth-century"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_bass_factory",
          "name": "Built-fretless (factory)",
          "descriptors": [
            "twenty-first-century",
            "consistent",
            "commercial"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_bass_lined",
          "name": "Lined fretless (pedagogical)",
          "descriptors": [
            "hybrid",
            "twentieth-century"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    },
    {
      "id": "fretless_fingerboard_wood",
      "surface": false,
      "name": "Fretless fingerboard",
      "variants": [
        {
          "id": "fretless_ebony_unlined",
          "default": true,
          "name": "Ebony unlined (fusion canon — unmarked)",
          "descriptors": [
            "ebony",
            "unlined",
            "fusion-fretless-canon",
            "singing-mwah"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ],
          "canonical_tags": [
            "jazz"
          ]
        },
        {
          "id": "fretless_ebony_lined",
          "name": "Ebony lined (pedagogical / session-fretless canon)",
          "descriptors": [
            "ebony",
            "lined",
            "visual-guides"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_pao_ferro",
          "name": "Pau ferro unlined",
          "descriptors": [
            "pau-ferro",
            "unlined"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_epoxy_maple",
          "name": "Epoxy-coated maple (the original Jaco conversion)",
          "descriptors": [
            "maple-base",
            "epoxy-coated",
            "extra-mwah-sustain"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_micarta",
          "name": "Micarta (6-string boutique)",
          "descriptors": [
            "micarta",
            "synthetic",
            "durable"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_wenge",
          "name": "Wenge unlined (Warwick canon)",
          "descriptors": [
            "wenge",
            "percussive",
            "warwick-canon"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    },
    {
      "id": "fretless_bass_strings",
      "surface": false,
      "name": "Strings",
      "variants": [
        {
          "id": "fretless_groundwound",
          "default": true,
          "name": "Ground-wound (canonical fretless, preserves fingerboard)",
          "descriptors": [
            "groundwound",
            "half-round",
            "fingerboard-friendly"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_flatwound",
          "name": "Flatwound (jazz fretless canon)",
          "descriptors": [
            "flatwound",
            "jazz-warm",
            "fingerboard-friendly"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ],
          "canonical_tags": [
            "jazz"
          ]
        },
        {
          "id": "fretless_tapewound",
          "name": "Tape-wound (upright-emulation)",
          "descriptors": [
            "tape-wound",
            "nylon-tape",
            "upright-mwah"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_roundwound",
          "name": "Roundwound (eats fingerboards but bright)",
          "descriptors": [
            "roundwound",
            "bright-mwah",
            "fingerboard-wear"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    }
  ],
  "_ownParts": [
    {
      "id": "electric_technique",
      "default_variant": "electric_bass_walking"
    },
    {
      "id": "fretless_use",
      "surface": false,
      "name": "Use",
      "variants": [
        {
          "id": "fretless_jazz",
          "default": true,
          "name": "Jazz / fusion solo",
          "descriptors": [
            "singing",
            "vocal-imitating",
            "virtuoso"
          ],
          "match_tokens": [
            "jazz-trained",
            "electric"
          ]
        },
        {
          "id": "fretless_rock",
          "name": "Art rock",
          "descriptors": [
            "low-mid-rich-spectrum",
            "expressive",
            "distinctive"
          ],
          "match_tokens": [
            "rock-context",
            "electric",
            "low-register"
          ]
        }
      ]
    },
    {
      "id": "fretless_bass_construction",
      "name": "Construction",
      "variants": [
        {
          "id": "fretless_bass_conversion",
          "default": true,
          "name": "Fretless conversion (epoxy fingerboard)",
          "descriptors": [
            "distinctive-mwah",
            "twentieth-century"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_bass_factory",
          "name": "Built-fretless (factory)",
          "descriptors": [
            "twenty-first-century",
            "consistent",
            "commercial"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_bass_lined",
          "name": "Lined fretless (pedagogical)",
          "descriptors": [
            "hybrid",
            "twentieth-century"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    },
    {
      "id": "fretless_fingerboard_wood",
      "surface": false,
      "name": "Fretless fingerboard",
      "variants": [
        {
          "id": "fretless_ebony_unlined",
          "default": true,
          "name": "Ebony unlined (fusion canon — unmarked)",
          "descriptors": [
            "ebony",
            "unlined",
            "fusion-fretless-canon",
            "singing-mwah"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ],
          "canonical_tags": [
            "jazz"
          ]
        },
        {
          "id": "fretless_ebony_lined",
          "name": "Ebony lined (pedagogical / session-fretless canon)",
          "descriptors": [
            "ebony",
            "lined",
            "visual-guides"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_pao_ferro",
          "name": "Pau ferro unlined",
          "descriptors": [
            "pau-ferro",
            "unlined"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_epoxy_maple",
          "name": "Epoxy-coated maple (the original Jaco conversion)",
          "descriptors": [
            "maple-base",
            "epoxy-coated",
            "extra-mwah-sustain"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_micarta",
          "name": "Micarta (6-string boutique)",
          "descriptors": [
            "micarta",
            "synthetic",
            "durable"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_wenge",
          "name": "Wenge unlined (Warwick canon)",
          "descriptors": [
            "wenge",
            "percussive",
            "warwick-canon"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    },
    {
      "id": "fretless_bass_strings",
      "surface": false,
      "name": "Strings",
      "variants": [
        {
          "id": "fretless_groundwound",
          "default": true,
          "name": "Ground-wound (canonical fretless, preserves fingerboard)",
          "descriptors": [
            "groundwound",
            "half-round",
            "fingerboard-friendly"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_flatwound",
          "name": "Flatwound (jazz fretless canon)",
          "descriptors": [
            "flatwound",
            "jazz-warm",
            "fingerboard-friendly"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ],
          "canonical_tags": [
            "jazz"
          ]
        },
        {
          "id": "fretless_tapewound",
          "name": "Tape-wound (upright-emulation)",
          "descriptors": [
            "tape-wound",
            "nylon-tape",
            "upright-mwah"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        },
        {
          "id": "fretless_roundwound",
          "name": "Roundwound (eats fingerboards but bright)",
          "descriptors": [
            "roundwound",
            "bright-mwah",
            "fingerboard-wear"
          ],
          "match_tokens": [
            "electric",
            "low-register",
            "fretless"
          ]
        }
      ]
    }
  ]
}