Search for on Sheet Music Direct. You can download chapters as PDFs. This book includes full transcriptions of "The Chicken" (a masterclass in pentatonics over funk) and "Primitive Humor."
While many "PDFs" found online are transcriptions of his videos or summaries of his courses at the Musicians Institute (MI), his official publications include: Scott Henderson | PDF - Scribd scott henderson jazz fusion improvisation pdf work
Transcriptions attached to his "Fusion Blues" PDF show solos where Henderson plays only these three-note cells for entire choruses, using rhythm and articulation to create interest. The "improvisation" comes from how you connect these cells, not from how many notes you insert between them. Search for on Sheet Music Direct
: On the last beat of a four-bar phrase, play one half-step above the pentatonic shape, then return. Limit to once every 12 bars. The "improvisation" comes from how you connect these