There are three artists called "Maso."
(Maso could also be a misstag for a Slovak thrash metal/hardcore band Mäso from Zvolen) 1. Czech alternative punk/acordeon/core, established in 1998 in Brno, Czech Republic.
"Maso" means "meat" in Czech.
Voice: Herr Johann
Accordion: Pupek
Straightbass: Frank
Brummbass: On
Beats: Massimo
Official site: http://www.masomusic.cz.
Music downloadable from their site http://bandzone.cz/maso1. 2. Prolific demoscene composer of the (at least) late 1980s/early 1990s, usually associated with the demo group "Accession."

Read more about Maso on Last.fm.