Stacomi Music (Sutakomi: Star Communicator) (スタコミ BGM)
Time stamps (thx @melsramblestation )
0:00 Title theme
1:31 Menu theme
3:33 Personal data entry/ quiz
5:10 Unknown theme (never heard this one)
6:49 Introduction theme/ explanation
8:54 Cook's theme
11:41 Kokichi's theme
14:14 Lollo's theme
18:59 Piyo's theme
21:35 Kojiro's theme
26:26 Star Slots
29:24 Unknown jingle
29:30 Minigame results theme
32:41 Panel Slider
35:53 Panel Slider clear jingle
35:58 Color Fall
38:28 Staff Roll/ Credits
40:00 Easy Star Groove level
42:59 Normal Star Groove level
46:51 Hard Star Groove level
50:05 Booltal robbery/ event theme
52:50 Pet Selection theme
How to test in game:
To recreate this yourself, change offset 0x1151A (or change ROM 0801151A in VBA memory editor) to modify the index number of the music for the pet selection screen.
(Found and ripped myself, but you don't have to credit me)
Might be incomplete.