Looping as Pat and Scott said is at times tedious, but has some benefit. i used Acid Pro for about two years as well. I found it difficult and time consuming to build songs that way.

RB, and BiaB, uses loops a bit differently. First off in Acid you need to have the loops in different key signatures for each instrument. The advantages in Acid, is that you can make loops super fast with the render looped region only feature and it had very advanced loop region setup.

In RB for instance looping is still very elementary at best, BUT, and it is a big but, with the ability to set a loop and have it follow tempo, and chord change, all you need is simple basic loops.

I look at the looping feature in RB as another way to add specific sound wave file tracks to fill gaps in the evolutionary chain of RTs, and RDs.

Looping is not sophisticated enough in RB to jump in head first like an acid pro or Sonar groove clips kind of way. But you need a unique drum track, and fade in jungle sound, or a specific guitar pattern, just grab a audio lop and let it go.

Imagine this you want a staccato piano entry for a old fifties rock tune. You have the new John Jarvis Rock piano, but you just want the intro to pound the piano on 16th notes for four bars before the track hits all the instruments. Loop time find a loop to fit, and have the JJ piano come in on bar 5!

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