Vulkán

Czech rock and soul group from Brno.
Formed in 1963, since 1966 led by Skupina Aleše Sigmunda.
1963–1966:
Oldřich Matoušek (guitar), Jiří Lešenar (guitar), Miroslav Lešenar (bass guitar), unknown (drums), Jaroslav Ptáček (drums), Hana Ulrychová (vocals), Petr Ulrych (vocals, guitar)
1966–1967:
Aleš Sigmund (vocals, guitar, leader), Ivan “Sádra” Sultanov (guitar), Jiří “Dany” Svoboda (bass guitar), Jaroslav Ptáček (drums), Hana Ulrychová (vocals), Petr Ulrych (vocals), Martha Elefteriadu (vocals), Tena Elefteriadu (vocals)
1967–1968:
Aleš Sigmund (vocals, guitar, leader), Jan Kukleta (guitar, vocals), Kamil Tomeček (bass guitar), Lubomír Hloušek (bass guitar), Jaroslav Ptáček (drums), Martha Elefteriadu (vocals), Tena Elefteriadu (vocals)
1969–1970:
Aleš Sigmund (vocals, guitar, leader), Bedřich Crha (organ), Cyril Kajnar (bass guitar), Karel Antonín (drums), Martha Elefteriadu (vocals), Tena Elefteriadu (vocals)