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California artist Charles Long has created new interactive musical sculptures that are spread across Madison Square Park.

The installation of biomorphic shapes is called "Pet Sounds."

"Along the backbone of this it's almost like the ribcage of a rail so there are notes in all these different sections so you can change that down here. There's a sea gull right here. Lets see if we can find it. There it is," Long said as he went through several sculptures.

The shapes are Long's tribute to the Beach Boys album of the same name and the musical genius of Brian Wilson.

"If you listen to the lyrics of "Pet Sounds" and the beautiful music of it, it's just one giant piece of love energy coming out of it. That's what I wanted for this park," he said.

Each sculpture plays a combination of atmospheric sounds, rhythms and real animal noises (or "Pet Sounds").

When the sculpture sounds interact with the surrounding ecosystem, they create unique combinations that excite the sculpture's creator.

"If a bird lands on this, the rattlesnake sounds. As you go up the neck there are all kinds of saxophone riffs. Then to throw everything off back here I put a red-tailed hawk," Long said as he went through more structures.

Obviously, the sculptures are meant to be touched. If you can get someone to join in, you can make beautiful music together.

And as you 'get around' the park you can see kids and adults enjoying the surprising shapes and sounds.

The sculptures are on display through early September.