About the MIDI files:

The MIDI file (2man_trio1) of Bach's Trio Sonata No 1 in Eb, BWV 525a was downloaded from www.classicalarchives.com. The MIDI file was recorded by Lloyd B. Thomkins and was  re-recorded through jOrgan to add registration and proper manual assignment to the MIDI channels.

The MIDI file (2man_Allein) of Bach's Prelude "Allein Gott in der Hoh' sei Ehr," BWV 677 was downloaded from www.classicalarchives.com. The MIDI file was recorded by Darren L. Sleider and was re-recorded through jOrgan to add registration and proper manual assignment to -the MIDI channels.

The MIDI file (Burea_Mache_dich_Homilius_IMSLP) was sequenced by Patrick Roose and downloaded from IMSLP (http://imslp.org/wiki/Mache_dich_mein_Geist_bereit_(Homilius,_Gottfried_August)#tab2). The MIDI file was re-recorded through jOrgan to add registration and proper manual assignment to the MIDI channels.