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Lesson time: (14min 32sec)
Joe Glossop breaks down Booker T & the MG's 'Chicken Pox' part by part on the Hammond organ, covering the voicings, drawbar settings and economical phrasing that make the groove work.
This lesson is part of the course Authentic Hammond Language for Soul & Jazz
Watch a preview of the full course below.
Lesson transcript:
Introduction
So let's have a look at Chickenpox. It's a song by Booker T and the MGs. You'll all be familiar with Booker T, an amazing player!
In this lesson, I'll run through the song as a whole, give you all the parts, and then break them down.
Context
Listen to this in the context of the track, because these are all parts that fit into the song, rather than being a fully organ-led piece.
Overview of the Tune
So, that's the tune in its entirety. It's not a wildly soloistic tune. Is that a word? I'm not sure. It's more about the parts, sounds, and the economy of how they serve the tune. That's where Booker T is absolutely at his best.
"This organ is very top heavy."
Variability in Sound
It's just different per organ, per Leslie. Even if you had ten C3s, same models lined up, they would all sound different because they've aged at different rates. The components within them, like capacitors and valves, age and affect the sound cumulatively over time.
Full and Fast Leslie
We've got this full sound. Use the fast Leslie there, switch it up during this part.
Left Hand: Go down to the lower manual and play an open nine chord, right?
Lead Part: You'll have a fifths part up here with the same tone that was used in the intro.
For the solo, switch over to the second set of drawbars. You can:
Licks
"So from the top, you got the flat five stuff falling down to an A chord, part of an A chord, just one and three to a junior B."
Now, for the next section of the song, you'll be doubling a riff. Most people are doubling this riff on the track.
Here, we'll use two hands:
Final Section
The third time, switch the Leslie. So, that section again: back to that intro theme. Then there's a drop-down, mainly guitar and bass.
Variation
When I play the whole thing, I just reference it for context. It's the theme again but with a nice variation.
"The only function is to get back to the E."
You can put a few licks in here if you like, holding that high B. And there you have it!
"Booker T is absolutely fabulous on this tune, so enjoy!"

Joe Glossop is a keyboard player from Sheffield who has made his name on the Hammond organ. He currently holds the organ chair in Tom Jones's touring band, and has played with Van Morrison and James Hunter, as well as on piano and Rhodes. His courses get the real Hammond sound out of any keyboard - drawbar registration, the Leslie, the walking-bass left hand, and the comping and soloing vocabulary of the soul-jazz, blues and rock organ traditions, from Jimmy Smith to Booker T. read more