The MP3 allows you to hear the song. The PDF lets you look at the sheet music
Earthworm MP3 Earthworm PDF
Grasshopper MP3 Grasshopper PDF
James MP3 James PDF
Ladahlord MP3 Ladahlord PDF
Ladybug MP3 Ladybug PDF
Spiker & Sponge MP3 Spiker & Sponge PDF