keezy - A colorful soundboard. Play with music.
Six Degrees of Wikipedia - Find the shortest path between two subjects
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Pathica - Find a path to connect with anyone on Instagram.
Splice - Music creation, collaboration, and sharing made simple.
IconWorkshop - Application to create and manage software icons. A must for developers.