RAMEAU: A SYSTEM FOR AUTOMATIC HARMONIC ANALYSIS

Automated harmonic analysis is an important and interest- ing music research topic. Although many researchers have studied solutions to this problem, there is no comprehen- sive and systematic comparison of the many techniques proposed. In this paper we present Rameau, a framework for auto- matic harmonic analysis we are developing. With Rameau we are able to reimplement and analyze previous tech- niques, and develop new ones as well. We present a per- formance evaluation of ten algorithms on a corpus of 140 Bach chorales. We also evaluate four of them using preci- sion and recall and discuss possible improvements. We also present a numeric codification for tonal mu- sic with interesting properties, such as easy transposition, preservation of enharmonic information and easy conver- sion to standard pitch-class notation.