Wow : many Thanks Jazzmadman for the speedy response and thanks for the welcome. I should have introduced myself ... Sorry.

You have explained very well and I look forward to experimenting. So, if for example, I recorded a guitar improvisation over my chord progression including the same chords several times, but varying the solo right across my fretboard, when I create a new progression BIAB will avoid very large jumps to enable a smooth solo from bar/measure to bar/measure?

Superb - I will start recording on my DAW tomorrow - and try to use a wide variety of chords to play solo over, and hopefully post some examples to the forum in the format required.