This will give you 10sec then will send F4 to Biab to generate and play.
alt+Q is the hot key, you can change it to whatever you like, you can change {F4} to {space} to send spacebar to play only.

Code:
; Only one instance running at a time
#SingleInstance force

~!Q::
winactivate,ahk_class TBandWindow
Sleep, 10000
Send  {F4}
return

save it as Biab Delay Play.ahk and run it with AutoHotKey installed.
https://www.autohotkey.com/docs/commands/Send.htm