The Trap Door: Routine at FDEB

FDEB: Play Menu Music Coda

Used by the routine at Continue_MenuMusicTick. Play coda notes from the table at MenuMusic_CodaNoteTable via the ROM beeper.
Play_MenuMusicCoda	FDEB	LD E,B	Point DE at offset B and HL at MenuMusic_CodaNoteTable.
	FDEC	LD D,$00
	FDEE	LD HL,$FE23
	FDF1	ADC HL,DE	Add the offset into HL.
	FDF3	LD A,(HL)	Fetch the note length into B.
	FDF4	LD B,A	Fetch the note length into B.
	FDF5	LD HL,$0003	Point HL at the starting pitch (0003).
Sound each coda step through Sound_CodaBeep.
Play_MenuMusicCoda_Loop	FDF8	PUSH BC	Stash the remaining note count on the stack.
	FDF9	LD DE,$0001	Load DE with pitch step 0001.
	FDFC	PUSH HL	Stash the current pitch on the stack.
	FDFD	CALL Sound_CodaBeep	Call Sound_CodaBeep to beep at this pitch.
	FE00	POP HL	Restore the pitch into HL.
	FE01	LD DE,$00FF	Raise the pitch by 00FF.
	FE04	ADC HL,DE	Raise the pitch by 00FF.
	FE06	POP BC	Restore the remaining note count.
	FE07	DJNZ Play_MenuMusicCoda_Loop	Decrease B and loop to Play_MenuMusicCoda_Loop while notes remain.
	FE09	RET	Return.