To me, improvising is like speaking a language spontaneously, whereas only reading music and re-creating the music others (or yourself) have written is like reading a book or a story out loud. The reading is scripted, whereas the spontaneous use of language flows where it will, especially if it’s in conversation with another. If you’re new to improvising, it’s a simple thing to do.
This is a great tune. It’s simple, but very easy to rush those quarter note and dotted quarter note rhythms. If you’re not paying attention, you’re gonna speed up instead of lay it back. Here’s how it’s done right, and Freddie blows a killer improvised solo. (changes in C are here, thanks to MRB) (Real Book, vol. 2 in which Moanin’ appears can be found in C (piano, guitar, etc.), Bb (trumpet, clarinet, t. sax), Eb (alto sax) and bass clef)