The Music Machine's three specialist channels, launched by XFM and NME Radio founder Sammy Jacobs, cover five decades from Sixties Garage to the latest reverb-drenched indie rock.

The Music Machine mobile app and website includes an interactive chart compiled in real time by users of the service and facilities for buying and downloading music through iTunes either on impulse or via tagging for later purchase.

The app is free to download and provides free access for the first 30 days, ...