The MusicMakers Hacklab is a performance laboratory that aims to invent tools and strategies for improvised play. Following an open call, some 20 Hacklab fellows have been selected for the 2019 edition. In a spirit of sharing and community, the Hacklab will be open to walk-ins from both hackers and the general public, and includes a free series of Hacklab Input talks, providing inspiration for Hacklab fellows and the public. After a week of exploring together, the Hacklab will culminate in a live performance at HAU Hebbel am Ufer (HAU2) on Sunday 3 February.