His instruments became popular among blues and folk music musicians of London, gaining a good reputation. During the 1960s, Zemaitis made 12-string guitars for notable musicians including Ralph McTell, Spencer Davis, Eric Clapton and Jimi Hendrix.
Among blues and folk music fans in London, his instruments became popular; during the 1960s, Zemaitis created 12-string guitars for well-known musicians such as Ralph McTell, Spencer Davis, Eric Clapton, and Jimi Hendrix.