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A1	The Improvisers	7:54
A2	Hellbound	6:37
A3	Mystique	7:37
B1	Mississipi Mud	2:51
B2	Mushmouth	6:30
B3	Technological Homosapien Backing Vocals – Cissy Houston, Judy ClayNarrator – Robert Cunningham*	5:16
B4	Street Musicians Violin – David Nadien	2:54
B5	In A Little Spanish Town (T'was On A Night Like This) Written-By – Joe Young , Mabel Wayne, Sam Lewis	3:23

Companies, etc.

• Recorded At – Regent Sound Studios, New York City

Credits

• Alto Saxophone, Tenor Saxophone, Flute, Oboe, Flute [Bamboo] – Yusef Lateef
• Arranged By, Composed By – Kenneth Barron* (tracks: A2, A3, B2), Yusef Lateef (tracks: A1, B1, B3, B4)
• Bass – Anthony Jackson, Robert Cunningham*, Ron Carter
• Drums – Al Foster
• Engineer [Recording, Remix] – Robert Liftin*
• French Horn – Jimmy Buffington*
• Guitar – Billy Butler
• Keyboards – Kenneth Barron*
• Percussion – Dom Um Romao
• Photography By – Myron Dorf
• Producer – Joel Dorn
• Synthesizer [Arp 2600] – Dana McCurdy
• Trombone – Jack Jeffers
• Trumpet – Joseph Wilder*, Leonard Goines
• Tuba – Jonathan Dorn

Notes

℗ © 1976 Atlantic Recording Corporation

Barcode and Other Identifiers

• Other (Price Code): 0797

Other versions

Category	Artist	Title (Format)	Label	Category	Country	Year
SD 1685	Yusef Lateef	The Doctor Is In ...And Out ‎(LP, Album)	Atlantic	SD 1685	US	1976
SD 1685	Yusef Lateef	The Doctor Is In ...And Out ‎(LP, Album, RE)	Atlantic	SD 1685	US	Unknown
SD 1685	Yusef Lateef	The Doctor Is In ...And Out ‎(LP, Album)	Atlantic	SD 1685	US	1976
PPAN SD 1685	Yusef Lateef	The Doctor Is In ...And Out ‎(LP, Album)	Atlantic	PPAN SD 1685	UK	2016
COL-CD-6354	Yusef Lateef	The Doctor Is In ...And Out ‎(CD, Album, RE)	Collectables	COL-CD-6354	US	2002