But with no formal qualifications in chemistry and a growing interest in music , he went on to pursue a musical career .
When he left school at 15 , he wanted to pursue a career in chemistry and was apprenticed to a local chemical manufacturer .
With no formal qualifications in chemistry and a growing interest in music , he went on to pursue a musical career .
When he left school at 15 , he wanted to pursue a career in chemistry and was apprenticed to a local chemical manufacturer .