Cant find any other List to post this on, so I'll have a Go here -
I have no learned musical knowledge, only what I've picked up along the way and now I'm a bit foxed by a piece I am working on that is in 6/8 time. I always thought that that was a Waltz at double speed (OK, OK, quit laughing!

)but it seems to play OK in 4/4.
Question is - what IS the difference? AND - how would I set a timing in BIAB?
K.I.S.S answers please and non of your diminished augmented circle of 8th stuff either - lol!

cheers
Ian