This is a perfect opportunity to make your own. Trust me, it will change your music equipment life. This is a basic enough project to learn on too, I highly recommend it.

Get some 2 conductor, shielded cable (for a total of 3 connections), and some balanced 1/4" and midi plugs off ebay, and go to town. The cable will work for audio and midi - not all the pins in midi cables are connected.