This guide will provide everything you need to know about a Tiny Orchestra trophy in Summertime Madness.
Boat

You can find the first instrument on the boat at the end of the puzzle.
Lighthouse

And the next one is In the lighthouse, and you can find it before ascending to the top.
Lighthouse (Rotation

In the lighthouse, you will need to rotate the first platforms to match the image.
House

Once in the house, you need to go left, right, up, left, left, right, up, right.
City Night

You can find another one behind the train in the city at night.
City Day

There is one more behind the stairs in the tower in the city at day.

Small island

On the small island after of faith”, you can reach the island again by playing the piano.