4 Which instrument is played with the hand cupped into bell to manipulate sound?

The instrument played with the hand cupped into the bell to manipulate the sound is the trumpet. The trumpet is a brass instrument that produces sound when the player blows air through the mouthpiece. The sound travels through the tubing and is amplified by the bell. By cupping the hand into the bell, the player can alter the sound by changing the shape of the bell. This can produce different timbres and effects.