Analysis Of Musical Textures Played On The Guitar By Means Of Real-time Extraction Of Mid-level Descriptors

Publication Type:

Conference Paper

Source:

The 12th Sound and Music Computing Conference, Music Technology Research Group, Dept. of Computer Science, Maynooth University, Maynooth, Co. Kildare, Ireland (2015)

ISBN:

9-7809-92746629

URL:

http://www.maynoothuniversity.ie/smc15/

Keywords:

descriptors of guitar performance, hexaphonic nylon guitar, interactive musical systems, mid-level descriptors

Abstract:

The paper presents a set of mid-level descriptors for the analysis of musical textures played on the guitar, divided in six categories: global, guitar-specific, rhythm, pitch,
amplitude and spectrum descriptors. The employed system is based on an acoustic fretted nylon string guitar with hexaphonic pick-ups, and was programmed in Max. An overview of the explored low-level audio descriptors is given in the first section. Mid-level descriptors, many of them based on a general affordance of the guitar, are the subject of the central section. Finally, some distinctive characteristics of five different textures – two-voice writing, block chords, arpeggios, fast gestures with legato, slow melody with accompaniment– are highlighted with the help of the implemented tools.
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