The PerlHumdrum and PerlLilypond Toolkits for Symbolic Music Information Retrieval

PerlHumdrum is an alternative toolkit for working with large numbers of Humdrum scores. While based on the original Humdrum toolkit, it is a completely new, self-contained implementation that can serve as a replacement, and may be a better choice for some computing systems. PerlHumdrum is fully object-oriented, is designed to easily facilitate analysis and processing of multiple humdrum files, and to answer common musicological questions across entire sets, collections of music, or even the entire output of single or multiple composers. Several extended capabilities that are not available in the original toolkit are also provided, such as translation of MIDI scores to Humdrum, provisions for constructing graphs, a graphical user interface for non-programmers, and the ability to generate complete scores or partial musical examples as standard musical notation using PerlLilypond. These tools are intended primarily for use by music theorists, computational musicologists, and Music Information Retrieval (MIR) researchers.