13,349 research outputs found
Harrison Birtwistle studies
No full textHarrison Birtwistle Studies extends scholarly understanding of the composer through new engagements with the man and the music. Representing current research on Birtwistle’s music, the collection reflects the diversity of his work in terms of periods, genres, forms, techniques and related issues through a wide-range of critical, theoretical and analytical interpretations and perspectives
Overcoming Form: reflections on immersive listening
No full textThis short collection of essays focuses on four areas of immersive sound environments: repetition, sustained tones, performed installations and approaches to extended forms. Through in depth exploration of the experiential nature of these subjects, the authors offer reflections upon the materials used for these environments, how they are organised, and the consequences of this on how we listen
Harrison Birtwistle's operas and music theatre
No full textDavid Beard presents the first definitive survey of Harrison Birtwistle's music for the opera house and theatre, from his smaller-scale works, such as Down by the Greenwood Side and Bow Down, to the full-length operas, such as Punch and Judy, The Mask of Orpheus and Gawain. Blending source study with both music analysis and cultural criticism, the book focuses on the sometimes tense but always revealing relationship between abstract musical processes and the practical demands of narrative drama, while touching on theories of parody, narrative, pastoral, film, the body and community. Each stage work is considered in terms of its own specific musico-dramatic themes, revealing how compositional scheme and dramatic conception are intertwined from the earliest stages of a project's genesis. The study draws on a substantial body of previously undocumented primary sources and goes beyond previous studies of the composer's output to include works unveiled from 2000 onwards
Metadata Representations for Queryable ML Model Zoos
No full textMachine learning (ML) practitioners and organizations are building model zoos of pre-trained models, containing metadata describing properties of the ML models and datasets that are useful for reporting, auditing, reproducibility, and interpretability purposes. The metatada is currently not standardised; its expressivity is limited; and there is no interoperable way to store and query it. Consequently, model search, reuse, comparison, and composition are hindered. In this paper, we advocate for standardized ML model metadata representation and management, proposing a toolkit supported to help practitioners manage and query that metadata.Web Information SystemsHuman-Centred Artificial Intelligenc
A Manifesto of Nodalism
No full textThis paper proposes the notion of Nodalism as a means describing contemporary culture and of understanding my own creative practice in electronic music composition. It draws on theories and ideas from Kirby, Bauman, Bourriaud, Deleuze, Guatarri, and Gochenour, to demonstrate how networks of ideas or connectionist neural models of cognitive behaviour can be used to contextualize, understand and become a creative tool for the creation of contemporary electronic music
Chiral pyridyl phosphinite catalysts and the development of structure selectivity relationships in the asymmetric hydrogenation of trisubstituted alkenes
No full textThe current trend in developing asymmetric catalysts is towards creating specialized molecules with tailored functions for increased selectivity in classes of substrates rather than general catalysts capable of broad application. In addition, the capacity to generate groups of catalysts with incremental changes to overall structure allows for a more detailed analysis of contributions to the structure selectivity relationships for a variety of substrates. This information can then be used to identify ideal catalysts or improve selectivity and activity of for a particular system.
Asymmetric hydrogenation of substituted alkenes with chiral iridium N,P complexes that were developed from the achiral Crabtree Complex have proven to be extraordinary selective and active catalysts. Screening a series of trisubstituted alkenes on 1st and 2nd generation catalysts indicated a strong enantioselectivity dependence on the phosphorus and pyridine substituents. In particular, the substituents in the ortho position of the pyridine ring were found to have significant control over the catalyst.
The synthesis of the 3rd generation of chiral pyridyl phosphinite catalysts takes advantage of a flexible late phase incorporation of the functional groups which govern the selectivity of the asymmetric hydrogenation to span a range of steric and electronic properties. The screening of these catalysts in the asymmetric hydrogenation of several classes of trisubstituted alkenes provided clear insight to the factors controlling enantioselectivity which were proven to vary greatly with the nature of the substrate and catalyst. Several catalysts with exceptional selectivity were identified for multiple examples of trisubstituted alkenes which had proven difficult with previous system
Optimizing ML Inference Queries Under Constraints
No full textThe proliferation of pre-trained ML models in public Web-based model zoos facilitates the engineering of ML pipelines to address complex inference queries over datasets and streams of unstructured content. Constructing optimal plan for a query is hard, especially when constraints (e.g. accuracy or execution time) must be taken into consideration, and the complexity of the inference query increases. To address this issue, we propose a method for optimizing ML inference queries that selects the most suitable ML models to use, as well as the order in which those models are executed. We formally define the constraint-based ML inference query optimization problem, formulate it as a Mixed Integer Programming (MIP) problem, and develop an optimizer that maximizes accuracy given constraints. This optimizer is capable of navigating a large search space to identify optimal query plans on various model zoos.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Web Information SystemsHuman-Centred Artificial Intelligenc
"Batter the doom drum": The music for Peter Hall's 'Oresteia' and other productions of Greek tragedy by Harrison Birtwistle and Judith Weir
No full textOpera was invented at the end of the sixteenth century in imitation of the supposed style of delivery of ancient Greek tragedy, and, since then, operas based on Greek drama have been among the most important in the repertoire. This collection of essays by leading authorities in the fields of Classics, Musicology, Dance Studies, English Literature, Modern Languages, and Theatre Studies provides an exceptionally wide-ranging and detailed overview of the relationship between the two genres. Since tragedies have played a much larger part than comedies in this branch of operatic history, the volume mostly concentrates on the tragic repertoire, but a chapter on musical versions of Aristophanes' Lysistrata is included, as well as discussions of incidental music, a very important part of the musical reception of ancient drama, from Andrea Gabrieli in 1585 to Harrison Birtwistle and Judith Weir in the late twentieth and early twenty-first centuries
Towards ‘a beautiful land’: Compositional strategies and influences in Five Panels (no.5)
No full textFive Panels (no.5) is an experimental electronic composition that takes as its starting point the classic (post-1949) abstract paintings of Mark Rothko. As a result, and in contrast to my previous works, Five Panels (no.5) is more minimal regarding its gestural content and makes less use of teleologically oriented structuring processes. The work focuses more on the details within each sound and on subtle shifts in timbre and acoustic space. This article will cover the influence of Rothko and abstract expressionism more broadly on the work. The spiritual quality of Rothko’s paintings is also investigated. As essentially abstract works, I am keen to understand how Rothko’s works, and, as an extension to this, abstract music can communicate a sense of spirituality with specific reference to Five Panels (no.5). Finally, the immersive quality of Rothko’s classic paintings, due both to their size and the painters obsessive control over the conditions and placement of the paintings in galleries, is discussed in relation to the use of surround sound in Five Panels (no.5)
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