From the collection of Hans Perk; originally posted on his blog A. Film L.A. and reproduced here with his permission.

PROD. NO. UM-37    PROD TITLE "Mickey's Grand Opera"    DRAFT NO. FINAL     PAGE NO. 5    DATE 9-28-35
SEQ.NO __________    SEQ.TITLE _______________________________________________________________
Director _________________    ASST. DIR. ____________    LAYOUT MAN ____________    SEC'Y___________
SCENE NO.	ARTIST	SCREEN FOOTAGE	B. G. DATA	DESRCRIPTION OF ACTION
41B	[Dick] Lundy	15-8		MCU - Pluto chases frog.
42	"	21-0		Frog into duck.
43	Les [Clark]	7-6		MCU - Hen reaches for high note.
44	[Dick] Lundy	5-13		MCU - Frog bounces duck.
45	[Dick] Lundy / Les [Clark]	7-3		MCU - Hen stabbed -- balcony sags.
46	[Dick] Lundy / Les [Clark]	4-1		MLS - Balcony falls.
47	[Dick] Lundy / Les [Clark]	14-1		MCU - All sing last chord.