Sheet Music is a type of Collectible in Stray. It can be found in The Slums area, and there are 8 pieces to collect.
These Collectibles can be turned in at Morusque, the guitar-playing robot just down the stairs to the left of Guardian, the first robot you meet in The Slums.
Sheet Music 1/8 can be found in Momo's flat. Once you gain entry, at the top of the tower with the orange sign, turn left and squeeze through the gap in the bars, leading into a dark room.
Climb up the boxes on the right to find the sheet music, sitting on a shelf.
Sheet Music 2/8 can be found on a balcony above the Dufer Bar. Climb up and you'll find the balcony near the apartment where you find Sheet Music 06.
Cross a sign to reach the balcony, then climb up on the table to find the sheet music.
Sheet Music 3/8 can be found in Elliot Programming. Read the note on the door to unlock the ability to knock on the door. Scratch at it and Nestor will open the door. Head through the door while it's open and you'll find the sheet music next to a portrait of another robot, on the wall opposite the door.
Sheet Music 4/8 can be purchased at The Market Place in The Slums. The Market Place is just down the stairs to the right of Guardian.
After you pick up an Energy Drink Can from one of the vending machines around The Slums, bring one to him and inspect the Sheet Music in the basked to the right of the merchant, then show him one of the Energy Drink Cans to obtain it.
Sheet Music 5/8 can be found upstairs in Dufer Bar on the main street of The Slums.
Head inside, then go up the stairs on your left. The sheet music is on a booth table next to the pool table.
Sheet Music 6/8 can be found in the flat above Dufer Bar in The Slums. Climb up to the roof and jump
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