Short #1, three ways to sound
Same 25 s cut. Tap play with sound on, then tell us A, B or C. Each is mixed to about −14 LUFS, YouTube's level.
AMusic only
"126 cha cha loop" by Bauchamp, CC0 (public domain).
BSound design only
Whooshes on wipes, ticks on count-ups, a chime at the end. Made by us.
CVoice over music
The 3 numbers read by a free AI voice (Piper "ryan"), music ducked under it.