In which activity were folk singers in the early twentieth century often involved

They were involved in folk dancing and telling of folk tales. Mark me as brainless thank you!

His contribution to the orchestral genre mainly lies with foreshadowing ideas that are to come like the emergence of the classical symphony, the cadenza for a keyboard, and paired instrumentation;

Hello kiddiothe answer is bbecause if they had no musicians there will be no musichave a nice day~ari and kay