If you're looking for a free MIDI sampler...

This program is not useful if you want to load in your own samples. You might want to try to search for a free sampler if you want to add drums or if you want to hear sounds that were not in a softsynth that you have. I think that this program can't be called a MIDI Software Tone Generator and Sampler and IMHO (In my humble opinion), even though it's a sequencer but it's not really a MIDI sequencer. This is my opinion, by the way, but I'm not really looking for a sequencer (even though I do have a software MIDI sequencer).