The interactive augmentation of musical instruments to foster self-expression and learning has a rich history. Over the past decades, incorporating interactive technologies into musical instruments has emerged as a research field requiring strong collaboration between disciplines. The workshop "Intelligent Music Interfaces"covers a wide range of musical research subjects and directions, including (a) current challenges in musical learning, (b) prototyping for improvements, (c) new means of musical expression, and (d) evaluation of the solutions.