Some Projects and Reflections on Algorithmic Music -- Real-Time Beat EstimationUsing Feature Extraction -- Towards a General Architecture for Musical Archive Information Systems -- The Study of Musical Scales in Central Africa: The Use of Interactive Experimental Methods -- Evolving Automatically High-Level Music Descriptors from Acoustic Signals -- 'Ambiguous Live' - Exploring Collaborative, Dynamic Control of MIDI Sequencers -- Characterization of Musical Performance Using Physical Sound Synthesis Models -- Conserving an Ancient Art of Music: Making SID Tunes Editable -- "GMU" - An Integrated Microsound Synthesis System -- What Are We Looking for? -- Extraction of Structural Patterns in Popular Melodies -- Musical Pattern Extraction Using Genetic Algorithms -- Automatic Extraction of Approximate Repetitions in Polyphonic Midi Files Based on Perceptive Criteria -- Deriving Musical Structures from Signal Analysis for Music Audio Summary Generation: "Sequence" and "State" Approach -- Musical Style Classification from Symbolic Data: A Two-Styles Case Study -- FMF(Fast Melody Finder): A Web-Based Music Retrieval System -- The Representation Levels of Music Information -- "Leçons": An Approach to a System for Machine Learning, Improvisation and Musical Performance -- About the Role of Mapping in Gesture-Controlled Live Computer Music -- Designing Musical Interfaces with Composition in Mind.