The drum tracks in the following five MIDI music files were generated by NEAT Drummer for the EvoMUSART 2008 paper, Scaffolding for Interactively Evolving Novel Drum Tracks for Existing Songs.

Johnny Cope (depicted in figure 3):

Generation 1: MIDI | MP3
Generation 11: MIDI | MP3

Additional Johnny Cope Example:

Example: MIDI

Oh! Susanna (depicted in figure 4):

Generation 25: MIDI | MP3

Additional Oh! Susanna Example:

Example: MIDI

Special thanks to Barry Taylor for granting special permission to utilize his own MIDI productions of folk music in this work. Barry Taylor orginally sequenced both Johnny Cope and Oh!Susanna (without percussion).