Looking at my first keyboard. I really like the build, EP and, organ sounds of the Nord Electro 5. I like some of the "other sounds" of the Roland VR-730 as well as the fact that it does have some preset rhythms tracks,looping and is about $1000.00 less than the. What type of "equipment" could I add to the Electro 5D 73 to provide myself with some basic backing tracks when I am at home messing around with the keyboard? Hope this question makes sense.