Statistical modeling of violin bowing parameter contours

We present a framework for modeling right-hand gestures in bowed-string instrument playing, applied to violin. Nearly non-intrusive sensing techniques allow for accurate acquisition of relevant timbre-related bowing gesture parameter cues. We model the temporal contour of bow transversal velocity, bow pressing force, and bow-bridge distance as sequences of short segments, in particular B´ezier cubic curve segments. Considering different articulations, dynamics, andcontexts, a number of note classes is defined. Gesture parameter contours of a performance database are analyzed at note-level by following a predefined grammar that dictatescharacteristics of curve segment sequences for each of the classes into consideration. Based on dynamic programming, gesture parameter contour analysis provides an optimal curve parameter vector for each note. The informationpresent in such parameter vector is enough for reconstructing original gesture parameter contours with significant fidelity. From the resulting representation vectors, weconstruct a statistical model based on Gaussian mixtures, suitable for both analysis and synthesis of bowing gesture parameter contours. We show the potential of the modelby synthesizing bowing gesture parameter contours from an annotated input score. Finally, we point out promising applicationsand developments.

Allegro Moderato af H.J. Müller med accomp. af en Violin

Soitinnus: piano.

No Evidence for moral reward and punishment in an anonymous context.

Human social interactions are regulated by moral norms that define individual obligations and rights. These norms are enforced by punishment of transgressors and reward of followers. Yet, the generality and strength of this drive to punish or reward is unclear, especially when people are not personally involved in the situation and when the actual impact of their sanction is only indirect, i.e., when it diminishes or promotes the social status of the punished or rewarded individual. In a real-life study, we investigated if people are inclined to anonymously punish or reward a person for her past deeds in a different social context. Participants from three socio-professional categories voted anonymously for early career violinists in an important violin competition. We found that participants did not punish an immoral violin candidate, nor did they reward another hyper-moral candidate. On the contrary, one socio-professional category sanctioned hyper-morality. Hence, salient moral information about past behavior did not elicit punishment or reward in an impersonal situation where the impact of the sanction was indirect. We conclude that contextual features play an important role in human motivation to enforce moral norms.

"Quería crear un nuevo cosmos" : Aleksandr Scriabin y su sonata para piano nº 9

A partir de l’estudi general de l’obra d’Aleksandr Scriabin i a partir de l’anàlisi particular de la Sonata núm. 9 així com de les distintes influències que va tenir, el treball pretén fer una valoració de com caldria interpretar la Sonata núm. 9. És per això que hom fa una introducció general a la vida de Scriabin i el situa en el seu context històric; estudia el seu interès per la filosofia i com aquesta va influir en la seva obra. Alhora hom analitza la faceta de Scriabin com a pianista i en revisa l’obra com a compositor. La segona part del treball, pròpiament analítica, entra en la qüestió de les sonates i la importància que adquireixen en tota la seva obra per tal de centrar-se, en el darrer punt, en la Sonata núm. 9 i l’enfocament interpretatiu que podria tenir. Aquí, a partir del que prèviament s’ha estudiat, hom proposa una possibilitat interpretativa. En relació a aquest punt es comparen interpretacions de diversos pianistes.

Andante and rondo capriccioso

Soitinnus: Piano.

El piano francès dels segles XX i XXI : una breu investigació per al disseny d'un repertori de concert

Aquest projecte pretén estudiar les aportacions de Messiaen, Dutilleux i Boulez en l’escriptura pianística, analitzant-ne la transcendència en el terreny interpretatiu actual. Per tal d’assolir aquest objectiu, es repassa quina ha sigut l’evolució de la tècnica pianística francesa, s’estudia el material i les circumstàncies que originen els respectius catàlegs per a piano i es realitza una comparativa del repertori estudiat en els principals conservatoris superiors de Barcelona, París, Sant Petersburg i Moscou. Aquest anàlisi permet determinar que el conservatori de París potencia les obres de nova creació, mentre que als de Barcelona, Sant Petersburg i Moscou encara s’opta per un estudi convergent al cànon. Com a conseqüència, els autors esmentats es consideren objecte d’estudi essencial a París, mentre que a Barcelona i les urbs russes encara no s’han establert en el pla d’estudis.

För violin

Soitinnus: viulu, piano.

Violin sonat

Soitinnus: viulu, piano.

Violin konsert

Soitinnus: piano.

Violin concerto op. 19 (1. osa)

Soitinnus: viulu, piano

Weep and cry

Soitinnus: trumpetti, bassoklarinetti, piano, kontrabasso, rummut.

Directed-spray application of paraquat and diuron in physic nut plants

There is little information about the selectivity of herbicides in physic nut (Jatropha curcas) in Brazil. Therefore, this study aimed to evaluate the selectivity of different doses and mixtures of paraquat and diuron in direted-spray applications in physic nut plants in greenhouse conditions. The study used a randomized block design, with five replicates. The treatments were: paraquat (200 and 600 g ha-1), diuron (1,000 and 2,000 g ha-1), paraquat + diuron (200 + 1,000 g ha-1), paraquat + diuron (200 + 2,000 g ha-1), paraquat + diuron (600 + 1,000 g ha-1), paraquat + diuron (600 + 2,000 g ha-1) and a control (no application). Directed-spray application was performed at 70 days after sowing by the lower third of the plants. The treatments of diuron and paraquat + diuron mixtures affected the growth and photosynthetic activity of physic nut plants, injuries being more pronounced at doses of diuron of 2,000 g ha‑1, while the isolated application of paraquat at doses of 200 and 600 g ha-1 showed good selectivity potential for physic nut plants.

Groove, Fanfare & Finale pour quintette de cuivres ; Voyage pour orchestre ; et Fantaisie pour piano et orchestre

La version intégrale de ce mémoire est disponible uniquement pour consultation individuelle à la Bibliothèque de musique de l’Université de Montréal (www.bib.umontreal.ca/MU).

Entre nationalisme et modernité : le répertoire pour le piano de la péninsule ibérique des années 1886-1927

La version intégrale de ce mémoire est disponible uniquement pour consultation individuelle à la Bibliothèque de musique de l’Université de Montréal (www.bib.umontreal.ca/MU).