Seems a might thin line between this and karaoke. No need for playing.
The difference being, with BIAB you are controlling content and building the track to suit you... with a mouse and not your fingers..
You guys know... like when you download the karaoke file from the internet...

Just use the mouse.
Donny we will reverse our rolls... Yo record the way I prefer.. Left hand bass and piano, along with drums... and I will download a karaoke backing track..

I will be done in 10 seconds..

As you said always.. use the tools you have. Some of us prefer the easy path and others prefer playing (as enjoyment).
BIAB replaces watching TV, watching movies on the PC, or listening to folks complain on SZ