Routines
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BF2A: Play Low Tone
Used by the routines at TestOrchidTouched, ScoreLabelFlash and EnterInitials.
Plays a steady tone of 10 cycles, using 80 as the pitch delay (so it is lower in pitch than PlayHighTone).
PlayLowTone BF2A LD BC,$8010 Set the half-period in B to 80 and the number of cycles in C to 10.
BF2D JR PlayWaveSequence Jump to PlayWaveSequence to play the tone.
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