「get」の使い方

I've been enjoying a bit of time off during Golden Week. On Sunday, I went to Superdeluxe in Roppongi on Sunday to see free improvisation.

http://www.super-deluxe.com/2010/5/2/improvisation1/

•  improvisation 【名】(definition from Eijiro on the Web)
インプロビゼーション、即興｛そっきょう｝、アドリブ、即席｛そくせき｝（に作った もの）、行き当たりばったりでやること◆【略】improv

This show had a lot of performers, including two drummers, one percussionist, two reed players, and one tuba player. Sometimes all of them played together, and sometimes they played in smaller ensembles.

• ensemble (definition from Eijiro on the Web)〈フランス語〉《音楽》アンサンブル、合唱曲｛がっしょうきょく｝、合奏曲｛がっそう きょく｝、合唱団｛がっしょうだん｝、合奏 団｛がっそうだん｝◆比較的小規模の編成で、メンバーがそれぞれ同等の働きをするものを指す

For me, the most interesting part was a duet between one sax player and one drummer.

I've gotten more interested in improvised music and gotten less interested in rock as I get older.

"Get" means "become", but it must be used with an adjective.

× I've got a saleswoman.
◯ I've become a saleswoman.

Now I'm getting sleepy. Good night!