Stravinsqi/De Montfort University at the MediaEval 2014 C@merata Task

An overview is provided of the Stravinsqi-Jun2014 algorithm and its performance on the MediaEval 2014 C@merata Task. Stravinsqi stands for STaff Representation Analysed VIa Natural language String Query Input. The algorithm parses a symbolic representation of a piece of music as well as a query string consisting of a natural language expression, and identifies where event(s) specified by the query occur in the music. The output for any given query is a list of time windows corresponding to the locations of relevant events. To evaluate the algorithm, its output time windows are compared with those specified by music experts for the same query-piece combinations. In an evaluation consisting of twenty pieces and 200 questions, Stravinsqi-Jun2014 had recall .91 and precision .46 at the measure level, and recall .87 and precision .44 at the beat level. Important potential applications of this work in music-educational software and musicological research are discussed.