The classical music of Iraq, known as Iraqi Maqam, features classical and vernacular poetry sung by a virtuoso soloist and accompanied by a small instrumental ensemble. It is a remarkably cosmopolitan art, sharing many features with neighboring classical traditions, particularly Iranian. Its repertoire consists of orally transmitted, multi-sectioned compositions, performed with some flexibility regarding ornamentation, arrangement and development. Focusing on the period between 1930-1980, this reference offers the first comprehensive view of the musical contents of the repertoire scalar structure, melodic materials and overall form through various tables and musical transcriptions. This reference consolidates information from prominent Iraqi sources and draws upon a selection of recordings by master musicians, including Rashid Qundarchi and Yusuf Omar. An introductory section provides a brief overview of pan-Middle Eastern modal theory along with an outline of the terminology, theory and practices specific to Iraqi Maqam. The main section of the work is a catalog of 40 maqams that constitute the central core of the contemporary repertoire. The Repertoire of Iraqi Maqam aims to foster a better musical understanding of a relatively little known tradition, promote further research, and enhance appreciative listening to this inspiring facet of Iraqi culture.

The Art of Avaz and Mohammad Reza Shajarian: Foundations and Contexts, by Rob Simms and Amir Koushkani, examines the traditional art of singing classical Persian poetry, as represented by its greatest living exponent. This in-depth study surveys the social and historical context of the twentieth-century tradition of avaz while placing Shajarian's early career within this complex culture, from being a child prodigy of Qur'an recitation in Mashhad to his rise to national prominence in the 1970s. As a globetrotting celebrity who is renowned for singing medieval poetry with impeccable technique and radiant inspiration, Shajarian's life and work provide a compelling case study for larger issues of reconciling tradition and modernity, and the crucial role of the individual in maintaining and renovating traditional art forms. Avaz is discussed in the broader context of Iranian narrative performance traditions, where the performer retells well-known scripts in a way that is appropriate to the audience and the present occasion, spinning the tale to convey a personal message. Shajarian's career also exemplifies the huge changes that Iranian musical culture underwent in the 1960s and 70s. Finally, the study includes a detailed examination of the materials and creative processes of Shajarian's artistic craft, including his acquisition process and training, vocal technique, selection and treatment of poetry, use of traditional musical materials, and his balance of engaging preset materials with improvisation. The Art of Avaz and Mohammad Reza Shajarian is an impressively detailed study of the music, life, and environment of the most influential musician in Iranian classical music of the past three decades.

Seismic amplitudes yield key information on lithology and fluid fill, enabling interpretation of reservoir quality and likelihood of hydrocarbon presence. The modern seismic interpreter must be able to deploy a range of sophisticated geophysical techniques, such as seismic inversion, AVO (amplitude variation with offset), and rock physics modelling, as well as integrating information from other geophysical techniques and well data. This accessible, authoritative book provides a complete framework for seismic amplitude interpretation and analysis in a practical manner that allows easy application - independent of any commercial software products. Deriving from the authors' extensive industry expertise and experience of delivering practical courses on the subject, it guides the interpreter through each step, introducing techniques with practical observations and helping to evaluate interpretation confidence. Seismic Amplitude is an invaluable day-to-day tool for graduate students and industry professionals in geology, geophysics, petrophysics, reservoir engineering, and all subsurface disciplines making regular use of seismic data.