“The many aspects of aural training in this book by Erik Højsgaard have been inspired by his deep insight into western music and its thousand-year-old traditions. Written with clarity that allows for rhythm and polyphony to be presented in an understandable form, Højsgaard's book is both musical and entertaining. There is no doubt that one gains new insights and musical joys after working through the book's exercises.”
The app which is designed by Marie Dahl Højsgaard acts as a metronome for all exercises in the textbook that deal with irregular and mixed time signatures, hemiolas, irrational time signatures, metric modulations, polymeter, and polyrhythm in irregular time signatures.
Included in the app is also an ordinary metronome that can be used for all other exercises.Furthermore the app has sections to train correct tempo-identification.