Not really a music person apart from Bach's Toccata and Fugue in 'D' minor and big band stuff. Course I've HEARD of ELP but never listened to them, let alone knowing their first names.
The B25s (callsign Hanover Formation) arrived at Blackbushe after the finish of filming 'Hanover Street' at Bovingdon, joining a plethora of DA owned types like the He111s, Ju52s and the 'illegal' T28s (classed as 'munitions of war' by the IR and imported without the requisite licence).