Without resorting to the puns in the Wonderbra thread, one of the things about music is that what you leave out is just as important as what you put in.

Having recently attended a blues guitar workshop (and a blues guitarist I'm not) my memory is that the blues scale was (roughly) pentatonic, even though that word was never used. The runs we were playing didn't sound like Scotland the Brave. Is my memory correct about the blues scale?

And to a more practical question - let's say I have a MIDI or ABC file and I want to hear how it might sound played as pentatonic. Without any real knowledge I imagine that I could suppress any of the irrelevant notes, or I could play the pentatonic note which preceded it. Anyone know how this could be done (easily)?

Regards John