TY - BOOK A1 - Rahmstorf, Stefan A1 - Schellnhuber, Hans Joachim T1 - Der Klimawandel T3 - Schriftenreihe / Bundeszentrale für politische Bildung ; Band 10520 Y1 - 2020 SN - 978-3-7425-0520-0 PB - Bundeszentrale für politische Bildung CY - Bonn ER - TY - BOOK A1 - Scherbaum, Frank A1 - Mzhavanadze, Nana A1 - Arom, Simha A1 - Rosenzweig, Sebastian A1 - Müller, Meinard ED - Scherbaum, Frank T1 - Tonal Organization of the Erkomaishvili Dataset: Pitches, Scales, Melodies and Harmonies T3 - Computational Analysis Of Traditional Georgian Vocal Music N2 - In this study we examine the tonal organization of a series of recordings of liturgical chants, sung in 1966 by the Georgian master singer Artem Erkomaishvili. This dataset is the oldest corpus of Georgian chants from which the time synchronous F0-trajectories for all three voices have been reliably determined (Müller et al. 2017). It is therefore of outstanding importance for the understanding of the tuning principles of traditional Georgian vocal music. The aim of the present study is to use various computational methods to analyze what these recordings can contribute to the ongoing scientific dispute about traditional Georgian tuning systems. Starting point for the present analysis is the re-release of the original audio data together with estimated fundamental frequency (F0) trajectories for each of the three voices, beat annotations, and digital scores (Rosenzweig et al. 2020). We present synoptic models for the pitch and the harmonic interval distributions, which are the first of such models for which the complete Erkomaishvili dataset was used. We show that these distributions can be very compactly be expressed as Gaussian mixture models, anchored on discrete sets of pitch or interval values for the pitch and interval distributions, respectively. As part of our study we demonstrate that these pitch values, which we refer to as scale pitches, and which are determined as the mean values of the Gaussian mixture elements, define the scale degrees of the melodic sound scales which build the skeleton of Artem Erkomaishvili’s intonation. The observation of consistent pitch bending of notes in melodic phrases, which appear in identical form in a group of chants, as well as the observation of harmonically driven intonation adjustments, which are clearly documented for all pure harmonic intervals, demonstrate that Artem Erkomaishvili intentionally deviates from the scale pitch skeleton quite freely. As a central result of our study, we proof that this melodic freedom is always constrained by the attracting influence of the scale pitches. Deviations of the F0-values of individual note events from the scale pitches at one instance of time are compensated for in the subsequent melodic steps. This suggests a deviation-compensation mechanism at the core of Artem Erkomaishvili’s melody generation, which clearly honors the scales but still allows for a large degree of melodic flexibility. This model, which summarizes all partial aspects of our analysis, is consistent with the melodic scale models derived from the observed pitch distributions, as well as with the melodic and harmonic interval distributions. In addition to the tangible results of our work, we believe that our work has general implications for the determination of tuning models from audio data, in particular for non-tempered music. T3 - Computational Analysis Of Traditional Georgian Vocal Music - 1 KW - computational ethnomusicology KW - traditional Georgian music KW - Georgian chant KW - Artem Erkomaishvili KW - musical scales KW - computergestützte Musikethnologie KW - traditionelle Georgische Musik KW - Georgische liturgische Gesänge KW - Artem Erkomaishvili KW - musikalische Tonleitern Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-476141 SN - 2702-2641 IS - 1 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - BOOK ED - Turner, Bryan S. ED - Wolf, Hannah ED - Fitzi, Gregor ED - Mackert, Jürgen T1 - Theories and concepts T3 - Urban change and citizenship in times of crisis N2 - Urban Change and Citizenship in Times of Crisis addresses the fact that in the beginning of the twenty-first century the majority of the world’s population is urbanised, a social fact that has turned cities more than ever into focal sites of social change. Multiple economic and political strategies, employed by a variety of individual and collective actors, on a number of scales, constitute cities as contested spaces that hold opportunities as well as restrictions for their inhabitants. While cities and urban spaces have long been of central concern for the social sciences, today, classical sociological questions about the city acquire new meaning: Can cities be spaces of emancipation, or does life in the modern city entail a corrosion of citizenship rights? Is the city the focus of societal transformation processes, or do urban environments lose importance in shaping social reality and economic relationships? Furthermore, new questions urgently need to be asked: What is the impact of different historical phenomena such as neo-liberal restructuring, financial and economic crises, or migration flows, as well as their respective counter-movements, on the structure of contemporary cities and on the citizenship rights of city inhabitants? The three volumes address such crucial questions thereby opening up new spaces of debate on both the city and new developments of urbanism. The contributions to Theories and Concepts offer new theoretical reflections on the city in a philosophical and historical perspective as well as fresh empirical analyses of social life in urban contexts. Chapters not only critically revisit classical and modern philosophical considerations about the nature of cities but no less discuss normative philosophical reflections of urban life and the role of religion in historical processes of the emergence of cities. Composed around the question whether there can be such a thing as a ‘successful city’, this volume addresses issues of urban political subjectivities by considering the city’s role in historical processes of emancipation, the fight for citizenship rights, and today’s challenges and opportunities with regard to promoting social justice, integration, and diversity. Consequentially, theory-driven empirical analyses offer new insight into ways of solving problems in urban contexts and a genuine approach to analyse the Social Quality in cities. Y1 - 2020 SN - 978-0-367-20562-1 SN - 978-0-429-26226-5 U6 - https://doi.org/10.4324/9780429262265 VL - 1 PB - Routledge CY - London ER -