Musicians playing together informally is known as Jamming.(option c)
what is jamming?
- a jam session is an informal event or activity where musicians plays solo or performs solo.
- it is a gathering of group of musicians to play or perform music for their own fun without audience.
therefore, Jamming refers to musicians playing together informally.
to know more about jamming refer to :
https://brainly.com/question/16674576
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