ARS CHORALIS 2010 - Hrvatska udruga zborovođa

has several aspects: emotional, life­style related, medical, pedagogical. Since those aspects are
often related to each other, a multi-dimensional approach for treating the patient is required. In
this presentation, several boundary conditions for a “good” voice are established. To illustrate the
effects of medical and pedagogical measures, we show case studies from our regular work with
voice patients.
• Vocal Folds Adduction and Registers in Classical Singing (L) (E)
Register control in singing is physiologically achieved mostly by the vocalis muscle (membranous
adduction). On the other hand, the degree of adduction of the posterior part of the glottis (cartilaginous
adduction, regulated by laryngeal adductory muscles PCA and IA) is known to have an
influence on the “richness” of the vocal sound source. In a recent study it has been shown, that
both trained and untrained singers can independently vary those two types of laryngeal adjustment.
The independent control over cartilaginous and membranous adduction allows singers to create
different vocal timbres at the laryngeal level. In singing pedagogy, this knowledge can be used to effectively
address certain technical problems, such as running out of breath, or register violations.
• Voice Timbre in Singing (L) (E)
Timbre, known in psychoacoustics as tone quality or tone color, distinguishes different types of
sound production. In singing, timbre is influenced by vowel quality, amount of high-frequency
energy components (“overtones”, singers’ formant) and the noise level (degree of breathiness).
Those sound qualities are mainly controlled by two physiologic means: adjustments of the vocal
tract and adjustments of the sound source, i.e. the laryngeal configuration.
Joy Hill (United Kingdom) • British conductor Joy Hill directs
the Royal College of Music Junior Department Chamber
Choir, Girls’ Choir and the alumni RCMJD Chamber Choir
Vigala Singers. She currently teaches academic music at the
Purcell School where she conducts the Purcell Chamber Choir,
and is known for her commitment to ‘giving new music a
chance’, actively promoting performances of music by young
student composers as well as high profile contemporary composers.
Originally a first-study pianist studying with Eric Parkin and Christopher
Elton Joy won the Vancouver Chamber Choir scholarship to study conducting with
Jon Washburn in Canada and was awarded a Churchill Fellowship for the study
of choral conducting in Sweden. She has worked as conductor and adjudicator in
Australia, Japan, Canada, Estonia, Latvia, Lithuania (sponsored by the Arts Council
of Great Britain), Italy, South Africa and Uganda. Formerly Senior Lecturer in
Music and Music Education, University of Surrey Roehampton and the Institute
of Education, London University, she is increasingly involved in projects that bring
The First International Artistic and Scientific Symposium on Choral Art, Singing and Voice – Zagreb, Croatia
19