No screens. No projectors. Just good tactile fun for all the senses. Touch Tiles are touch activated building blocks for music and light-based installations. Collectively Touch Tones form an interactive, tactile music and light-based experience that transforms an ordinary structure into a unique play surface. Interactivity options range from unstructured freeplay to collaborative gameplay within more structured musical landscapes. Guests can actively participate in music making, or simply watch and listen as the environment evolves around them. The surfaces themselves can be both re-active, waiting and responding to touch, and pro-active, encouraging directed touch with desired audio and visual outcomes. The same physical interface can be used in countless scenarios.