Former Mellotron Factory

British multi-instrumentalist Graham Bond may have been the first "rock" musician to record with a Mellotron, beginning in 1965. A year later, The Beatles used it prominently on their groundbreaking single "Strawberry Fields Forever" (recorded November-December 1966). However, it was Mike Pinder of the Moody Blues who brought the Mellotron to the forefront of popular music with the 1967 album Days of Future Passed in songs including "Nights in White Satin" and "Tuesday Afternoon".

http://mellotronics.com/