2.1 TB is on the extreme end for a black MIDI. Most MIDIs are about in MBs. The bigger ones are still under 100 MB, however. Keep in mind that on average, 1 million notes is about ~7.8 MB. Take Bad Apple!! 5.1 million for example. The MIDI is about . . . 40 MB? I have to admit, I was really bored when I decided to make Armageddon.