 Dinger spent the summer of 1975 improving his guitar playing and writing lyrics, intending to turn La Düsseldorf into a viable pop group.It was also in this period that Dinger began to use his signature Open-E tuning for the guitar, which would remain his tuning of favour for the rest of his career.Dinger's guitar playing, at first criticised as amateurish, developed in time to be as simplistic yet rhythmically advanced as his drumming, and Dinger never played a full drum kit on record again until 1998's "Year of the Tiger".