There are 3 artists which called Mumps
1) An alias of Umek, released 4 Techno EPs on Tortured Records.
All his tracks are called Mechanisms, starting from A, currently the last one is S. 2) There is a project of german trombonist Albert Mangelsdorff called Mumps, with some rare recordings in late 70s
Albert Mangelsdorff - trombone, guitar, voice
John Surman - baritone and soprano saxophones, bass clarinet, piano, synthesizer
Barre Phillips - bass, voice
Stu Martin - drums, synthesizer 3) An american punk rock band Mumps