Psaila has been the Voices Choir guitarist between 1991 and 2006 also featured with alternative rock band Syrup, that has since then disbanded.
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His first performance with Walter Micallef was during the latter's official launch of M'Jien Xejn at the Erin Serracino Inglott Hall in 2003 and plays the acoustic guitar on the March 2007 album Ħamsin.
Walter Micallef u l-Ħbieb is a modern folk sextet from Malta, featuring Walter Micallef on vocals and guitar, Renzo Spiteri on percussion, Jes Psaila on acoustic and electric guitar, Eric Wadge on bass, Pawlu Camilleri on harmonica and Albert Garzia on piano and accordion.