What is the difference between 演奏, 弹 and 奏?
演奏  (yǎn zòu)
to play a musical instrument in a performance

弹 (tan1)
to play sth by hand, sometimes roughly equivalent to "pluck"

弹钢琴 (tan1 gang1qin2)
to play the piano

弹琵琶 (tan1 pi2pa)
to play the pi2pa

拉 (la1)
to pull; to play an instrument, usually with a bow

拉二胡 (la1 er4hu2)
to play the er4hu2

拉小提琴 (la1 xiao3ti2qin2)
to play the violin

吹  (chui1)
to play sth by mouth

吹小号 (chui1 xiao3hao4)
to play the trumpet

Unrelated but funny:

吹牛 (chui1 niu2) 
lit. "to blow the cow"; to brag/boast/talk big

奏乐
play music for the padshah in ancient times，but not now

奏 a team（ or one） play a musical instrument in a performance On formal occasions