Christian Prommer's Drumlesson - Strings Of Life (feat. Roberto Di Gioia & Wolfgang Haffner) Year: 2007 This awesome Jazz tune was made in 2007 by the great drummer and DJ Christian Prommer (featuring Roberto Di Gioia at the piano and Wolfgang Haffner on live drums). It is inspired by the famous patterns of the classic song "String of Life" made by Derrick May (aka "Rhythim Is Rhythim") in 1989,