  Mastering a musical instrument requires time-consuming practice even if
students are guided by an expert. In the overwhelming majority of the time, the
students practice by themselves and traditional teaching materials, such as
videos or textbooks, lack interaction and guidance possibilities. Adequate
feedback, however, is highly important to prevent the acquirement of wrong
motions and to avoid potential health problems. In this paper, we envision
musical instruments as smart objects to enhance solo learning sessions. We give
an overview of existing approaches and setups and discuss them. Finally, we
conclude with recommendations for designing smart and augmented musical
instruments for learning purposes.
