Nine pieces, all from Tennis and Hockey. The engine (banks 7 and 8) has five tracks: the music uses the first three and the effects the last two, which take PSG voice C or B while they play and give it back when they end (p08:A291). The PSG has three voices and the engine writes to it through the BIOS (WRTPSG): it never touches an SCC.
The pieces are not rewritten: the cartridge's own engine runs on a Python Z80 (tools/musica.py) and what it writes to the PSG is turned into sound. Each one has been checked against openMSX (tools/omsx_psg.tcl, tools/coteja_psg.py): the chip state matches in every frame. The ten effects are not included.
Asked for by p07:80AA, on entering the minigame; looping. 4.3 s, looping back to frame 36.
Asked for by th_aplica_opciones (p07:926D), with tennis chosen. 6.1 s.
Asked for by th_aplica_opciones (p07:926D), with hockey chosen. 6.3 s.
Asked for by p07:8127 when 0x0E ends and by p07:835B after each set; looping. 28.2 s, looping back to frame 253.
Asked for by p07:812B when 0x0F ends and by p07:838D after half time; looping. 59.3 s, looping back to frame 1765.
Asked for by p07:8344 (state 6). 4.0 s.
Asked for by p07:8372 (state 7). 7.5 s.
Asked for by p07:82DA (state 5). 4.9 s.
Asked for by p07:824E (state 5). 6.1 s.