{
  "id": "heligonka_cf",
  "name": "Heligónka (two-row C/F)",
  "short": "C/F heligónka",
  "family": "free_reed",
  "class": "free_reed",
  "axes": {
    "pitchFix": 2,
    "sustain": 2,
    "polyphony": 2,
    "harmonicity": 1,
    "register": 0,
    "range": 2,
    "articulation": 1,
    "transduction": -2,
    "dynamics": 2
  },
  "parts": [
    {
      "id": "heligonka_cf_rows",
      "name": "Row and button layout",
      "variants": [
        {
          "id": "heligonka_cf_21_buttons",
          "name": "Two diatonic C/F rows: eleven C-row and ten F-row buttons",
          "default": true,
          "descriptors": [
            "diatonic"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "heligonka_cf_stojak",
      "name": "Same-pitch reversal button",
      "variants": [
        {
          "id": "heligonka_cf_stojak_present",
          "name": "Sixth F-row button retains its pitch during push and pull",
          "default": true,
          "descriptors": [],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "heligonka_cf_bass",
      "name": "Left-hand accompaniment",
      "variants": [
        {
          "id": "heligonka_cf_bass_and_chords",
          "name": "Alternating bass note and accompanying chord, as scored",
          "default": true,
          "descriptors": [
            "bass",
            "chordal"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "free_reed_technique",
      "name": "Bellows and melody gesture",
      "variants": [
        {
          "id": "heligonka_cf_scored_push_pull",
          "name": "Both rows, explicit push/pull and melody harmonization from complete score",
          "default": true,
          "descriptors": [
            "bellows-articulated",
            "phrased",
            "melodic"
          ],
          "match_tokens": []
        }
      ]
    }
  ],
  "description": "Ladislav Bihari — Spievanky, spievanky, complete one-page heligónka arrangement issued by Miroslav Jurči / Pesničky pre všetkých. The specific score is for a two-row C/F instrument and retains the entire right-hand melody and harmonization, left-hand bass/chords, button choices and push/pull bellows directions. It is an authored instrumental realization of this complete instrumental arrangement, not a reconstruction of an unspecified vocal recording. Printed song lyrics and six verses remain source underlay/context; the publisher identifies the arrangement for heligónka, not a separate scored singer. No additional vocalist is inferred from printed words. The institutionally documented one-player heligónka practice supports this single-player realization; no claim all heligónka music is instrumental. Broad functionalSong represents the selected strophic folk-song melody and explicitly notated functional C/D-minor/F/G7 chord cycle, realized instrumentally across its verses. This does not imply Anglosphere pop/rock or through-composed concert art solely because a score exists. The isolated free-reed owner preserves four documented physical/playing dimensions: two C/F rows with eleven and ten right-hand buttons; a sixth-button F-row stoják retaining one pitch in both bellows directions; left-hand bass-plus-chord support; and explicitly scored push/pull melody phrasing. No manufacturer, reed metal, reed rank count, shell material or measured original tuning frequency is invented. Stoják-present option is selected from the score’s documented alternatives. Authored controlled live-room realization and equal-tempered baseline are editorial recording choices, not a source-session claim.",
  "sources": [
    "https://pesnicky.orava.sk/data/noty/s/spievanky_spievanky_heligonka.pdf",
    "https://pesnicky.orava.sk/rozne/heligonka",
    "https://slovensko.ucm.sk/wp-content/uploads/2025/04/VS-ucebnica-Slovakia_EN.pdf"
  ],
  "_ownParts": [
    {
      "id": "heligonka_cf_rows",
      "name": "Row and button layout",
      "variants": [
        {
          "id": "heligonka_cf_21_buttons",
          "name": "Two diatonic C/F rows: eleven C-row and ten F-row buttons",
          "default": true,
          "descriptors": [
            "diatonic"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "heligonka_cf_stojak",
      "name": "Same-pitch reversal button",
      "variants": [
        {
          "id": "heligonka_cf_stojak_present",
          "name": "Sixth F-row button retains its pitch during push and pull",
          "default": true,
          "descriptors": [],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "heligonka_cf_bass",
      "name": "Left-hand accompaniment",
      "variants": [
        {
          "id": "heligonka_cf_bass_and_chords",
          "name": "Alternating bass note and accompanying chord, as scored",
          "default": true,
          "descriptors": [
            "bass",
            "chordal"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "free_reed_technique",
      "name": "Bellows and melody gesture",
      "variants": [
        {
          "id": "heligonka_cf_scored_push_pull",
          "name": "Both rows, explicit push/pull and melody harmonization from complete score",
          "default": true,
          "descriptors": [
            "bellows-articulated",
            "phrased",
            "melodic"
          ],
          "match_tokens": []
        }
      ]
    }
  ]
}