I had the chord changes to the Monk tune BS playing in the background and improvised (singing) over them. I came up with some ideas though they were a bit repetitive.
Then I tried to do the same on the piano. Now my ideas were more simplistic. I could come up with something to play and a few felicitous phrases, but not nearly as good as I was singing, and the rhythms were not bebop enough. The idea would be to bring those two things closer together. There was a satisfaction in doing something badly because I was gathering significant information about my ear.