My Little Brown Book was composed in 1944 by Billy Strayhorn for the Duke Ellington Orchestra, while still in his teens. The backing track is in the key of Bb major concert, has a 4 bar intro and 2 choruses. As with all of my backing tracks, I have lead sheets for C, Bb, and Eb instruments in PDF format, if you require one or more, please email me at peach_alan@hotmail.com