The Roland family of drum machines are really good in terms of having realtime ways to tweak tempo. Either via "Tap", slider or even the IR "D" beam controller. These are totally useful when trying to synch to recordings or live musicians. They also have a wide complement of synth sounds and samples making them much more than a drum machine. Mark Sottilaro Matthias Grob wrote: > > I hate drum machines, personally, but from all the demands by the > instructors for quickly changing times and speeds it seems to me that > for a begginner at least, the easiest would be to take a notebook > along with a library of drum patterns that can be mounted as the > instructor explains what he wants and then freely adapted as he > changes his mind.