There are 5 known artists named Z:

* Z (USA) aka AZDZ or AZ/DZ: a band of Ahmet & Dweezil Zappa both being sons of the late Frank Zappa @ http://zappa.com/dweezil & http://members.tripod.com/azdz . Members inclluded Frank Zappa alumni Mike Keneally and Terry Bozzio.

* Z is an alias of Naoki Maeda, composer of the vast majority of "Konami Original" songs appearing in Bemani games (Dance Dance Revolution, Beatmania, etc). Z's only song is MAXX UNLIMITED.

* Z (Belgium) aka Marcel Vanthilt (former member of the now defunct outfit Arbeid Adelt!) & his band @ http://houbi.com/belpop/groups/arbeidadelt.htm & http://www.vacature.com/scripts/indexpage.asp?headingID=4546 . Z’s only release so far: “MENSENZIJNERTEVEELAAN” (2004)

*Z (Japan) experimental jazz rock outfit with one album release "Mikabe" in 2006, formed by ex-members of bands like 100 lots and there is light that never goes out.

* Psy Trance on VA compliation TIP 3D with the track Uncle Mavis