El tracker ese que puse tiene el código fuente disponible, pero claro, métele mano
Lo que sí he visto es que el tracker puede soltar información entre otras como json:
{"channels":[{"chip":"OPLL","subindex":0},{"chip":"OPLL","subindex":1},{"chip":"OPLL","subindex":2},{"chip":"OPLL","subindex":3},{"chip":"OPLL","subindex":4},{"chip":"OPLL","subindex":5},{"chip":"OPLL","subindex":6},{"chip":"OPLL","subindex":7},{"chip":"OPLL","subindex":8}],"detunes":[],"dpcm_samples":[],"global":{"detune":{"cents":0,"semitones":0},"engine_speed":0,"fxx_split_point":32,"linear_pitch":false,"machine":"ntsc","vibrato_style":"new"},"grooves":[],"instruments":[{"chip":"OPLL","index":0,"name":"test","patch":14},{"chip":"OPLL","index":1,"name":"New instrument","patch":[1,33,0,0,0,240,0,15]}],"metadata":{"artist":"","comment":"","copyright":"","show_comment_on_open":false,"title":""},"sequences":[],"songs":[{"bookmarks":[],"frames":1,"highlight":[4,16],"rows":64,"speed":6,"tempo":150,"title":"New song","tracks":[{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[{"index":0,"notes":[{"note":{"inst_index":0,"kind":"note","value":48},"row":0},{"note":{"inst_index":0,"kind":"note","value":48},"row":8},{"note":{"inst_index":0,"kind":"note","value":48},"row":16},{"note":{"inst_index":0,"kind":"note","value":48},"row":24},{"note":{"inst_index":0,"kind":"note","value":53},"row":32},{"note":{"inst_index":0,"kind":"note","value":53},"row":40},{"note":{"inst_index":0,"kind":"note","value":53},"row":48},{"note":{"inst_index":0,"kind":"note","value":59},"row":56}]}],"subindex":0},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":1},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":2},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":3},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":4},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":5},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":6},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":7},{"chip":"OPLL","effect_columns":1,"frame_list":[0],"patterns":[],"subindex":8}],"uses_groove":false}]}
Quizás de ahí se puede pasar al formato moonblaster.