Jamey Aebersold 251 -

is a renowned jazz educator, and his Volume 1: "A New Approach to Jazz Improvisation" is famous for introducing the ii–V–I progression (2-5-1) as the fundamental building block of jazz harmony.

For jazz musicians, the phrase refers to more than just a theory lesson; it points to Volume 3: The II/V7/I Progression , widely considered the most important entry in the Jamey Aebersold Play-A-Long series . jamey aebersold 251