I drew a picture for art class is this good enough of a Wolverine?

In contour drawings crossing lines is one way to indicate this

After first arriving in new york, charlie parker took a job as a dishwasher at jimmy's chicken shack, where played the piano nightly. listening to his astonishing harmonic restructuring, virtuoso phrasing, and breakneck tempos every night for three months, charlie parker challenged himself to adopt these qualities into his playing, and he continued to practice tirelessly.

Explain briefly why it's to choose a chord progression before developing the harmony.