Figure 4From: Transcribing Bach chorales: Limitations and potentials of non-negative matrix factorisationExperimental results (ICTM-NMF): from top to bottom (i) input piano roll of chorale Aus tiefer Not schrei ich zu dir (ii) transcribed output, (iii) true positives-tp, (iv) false positives-fp, and (v) false negative-fn.Back to article page