Three months after the November 1968 sessions( http://www.progarchives.com/forum/forum_posts.asp?TID=15680&PN=2 - http://www.progarchives.com/forum/forum_posts.asp?TID=15680& amp;PN=2 ) with Joe Zawinul, Miles Davis returned to the studio on 18/0/69 and 20/02/69 to record what would become 'In A Silent Way'  Miles had now 3 keyboarders and the electric bass, but still he wanted to enlargen the sound. He invited a young guitarist who had already played with Tony Williams : John MC Laughlin, on electric guitar. This meant that after having played for overe 30 years only with acoustic instruments he is recording now with a majority of electrically amplified instruments : two Fender Rhodes, a Hammond B3, Electric Bass and Eleccric Guitar plus Wayne Shorter who  played exclusively Soprano Saxophone on these sessions and Tony Williams on drums.  Miles had listened in the meantime to the Beatles and  Hendrix and was interested  by the way they used the recording studio as a tool on his own. Up to now Miles recorded like most Jazz musicians in 'Takes',The musicians play the composition several times and the producer chooses the best take. For the February sessions Miles asked Teo Macero to tape littereally everything that 'happened' in the studio leaving Miles with a lot of 'raw' material fom which he could choose. This procedure influenced directly the music. When Miles arrived in the studio he had only basic indications for the musicians a Riff and/or some basic chords (apart from 'In a sileny way a Zawinul compostion, that was written out) Miles , he used this material   to construct a record. Some of the tracks on 'IASW' have been sliced and edited in another order especially on 'It's about time'.  (In the complete IASW sessions you have the basic unedited tracks)These were t the first sessions with only binnary rhythms announcing already the rockier side of 'Bitches Brew'.  'In A Silent Way' is a landmark record.