Wheeler met and played with the rising artists of London’s free jazz scene; players such as Trevor Watts, Derek Bailey, and Evan Parker, musicians who would challenge the conventions of the day, eschewing formal composition and structure to embark on group improvisation. For a musician thoroughly schooled in all the conventions of charts and dance bands as Wheeler was, this was a radical departure. Wheeler’s contributions proved his ample flexibility and showed he was capable of inhabiting both the free environment and the more formal and controlled settings of a big band and orchestra. This was shown most clearly on his debut album, Windmill Tilter, recorded for Fontana with the John Dankworth Orchestra. The album features a young John McLaughlin on guitar along with bassist Dave Holland and a roster of talented and well respected musicians playing on one of the greatest modern jazz big band and orchestral albums.