Who wants to join my pad let plz plz plz

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.

Explains why people match qualities/characteristics with other qualities/characteristics. attribution stereotyping implicit personality theory primary-recency self-fulfilling prophecy

What does bts stand for? what is the importance of bts? who first started it?