Over at Soundbyte Culture blog there is an incredible Warne Marsh transcription done by pianist/blogger T.J. Martley.
T.J. was kind enough to include a Bb and a concert chart, along with an MP3 of the original recording. He also has a YouTube video of him playing piano along with the original recording.
After checking this solo out there should be no doubt in your mind that Warne was one the great improvisors on the 20th century.
Warne Marsh transcription of Yardbird Suite