Be aware though that there are 2 types of MIDI to TRS cable - one has the tip of the TRS going to pin 4 of the MIDI connector and the TRS ring to MIDI pin 5, and the other type has these connections reversed. They are (unsurprisingly) called type A and type B, so I'd check with your kit's manufacturer which one you need. It's not the end of the world if you wire them the wrong way round, as it won't cause any damage.