The accuracy is so and so but the notes are pretty much all there. The timing is difficult to transcribe because he is constantly out of phase with the rhythm section, a little behind. Probably the contrast between the clear, big sound and the stretched tempo is one of the things that define the character of this recording. Here He is definitely closer to Louis Armstrong than to Dizzy Gillespie.
This trumpet is glorious, like a beautiful day, and it moves me every time I listen.