Some zoos and aquariums provide otters with keyboard-like instruments that produce sounds when pressed. Otters have been observed playing with these "piano" devices.
Elephants have been known to use their trunks to interact with various musical instruments, such as drums and keyboards. They can create rhythmic patterns and even respond to different melodies.
Trained sea lions in aquariums or marine parks can be taught to play simple musical instruments like horns or bells. They can clap, honk, or hit instruments with their flippers.
Some parrot species, known for their ability to mimic sounds, may be trained to interact with musical instruments. They can imitate tunes or even play simple instruments like keyboards.
In some cases, horses have been trained to play simple percussion instruments with their noses, creating rhythmic beats.
While not exactly musical instruments, dolphins in captivity have been known to interact with water jets in their pools, creating rhythmic splashing and sounds that can be considered a form of play.
Snowball, a famous Sulphur-crested Cockatoo, gained attention for his ability to dance to the beat of music. While not playing an instrument, his rhythmic movements are notable.
Koko, a gorilla known for her ability to communicate using sign language, has been observed playing a recorder. While not achieving complex musical melodies, it showcases a level of interaction with musical instruments.