Bartox

Bartox is a linear adventure puzzler with a great emphasis on sound. The protagonist, Bart is not enjoying his office job at a large company. He buys a violin from and gets it shipped from said company, and to his great amazement realizes that this is no standard violin, but a magical artifact transporting him to another world filled with fun and engaging challenges for him to solve. All seems great, but after some time the joy seems to fade from this magic world and one can see the rest of Bart's life slowly altering this dream world.

What can Bart do to save himself and bring back the magic like it was in the beginning?

The game focuses heavily on music and audio for solving the puzzles. You use your violin to ricochet sound waves and can do all sorts of other things too. Keep your wits about you and your violin at the ready.