<p>Here are a few:</p>
<p>AATS. (2008) NATS Visits the AATS. Journal of Singing. 65, 7–10 . Retrieved March 21, 2012 from Ebsco.</p>
<p>The American Academy of Teachers of Singing does not have its own journal, so from time to time, the Journal of Voice (publication of the National Association of Teachers of Singing) will publish statements or letters from AATS. This statement supports the need for specialized training for singers of Contemporary Commercial Music (CCM) which encompasses styles including: Musical Theatre, Pop, Rock, Jazz, Blues, R&B, County, Bluegrass, Heavy Metal, Gospel, Contemporary Christian, and all other styles whose roots are in American music.</p>
<p>Cleveland, Thomas F.; Stone, R.E.; Sundberg, Johan; Iwarsson, Jenny. (1997). Estimated Subglottal Pressure in Six Professional Country Singers. Journal of Voice. II, 403—409. Retrieved February 21, 2012 from Science Direct.</p>
<p>Cleveland, Thomas F., Sundberg, Johan, Stone, R. E. (Ed). (2001) Long-Term-Average Spectrum Characteristics of Country Singers During Speaking and Singing. Journal of Voice. 15, 54–60. Retrieved March 11, 2012 from Ebsco. </p>
<p>This study investigated the differences between the spectrographs (an acoustic measurement of tone quality) of country and classical singers. The results show that the measurement commonly associated with “forward placement” in classically trained singers is non-existent in country singers. The study also returned decibel level measurements (which measure the “volume level” or what scientists call “intensity”) that were remarkably lower than those associated with classical singers.</p>
<p>Cowgill, Jennifer Griffith, (2009). Breathing for Singers: A Comparative Analysis of Body Types and Breathing Tendencies. Journal of Singing. 66, 141-147. Retrieved February 27, 2012 from Ebsco.</p>
<p>This study showed that singers breathe differently based on their body type. Singers who were heavier may breathe lower than singers who are muscular but their lung volume and expiratory force (breath pressure/”support”) are statistically the same. The paper suggests that singers with different body types (i.e. overweight versus thin dancer) need different breathing strategies in order to get the same result.</p>
<p>Grant, Mark N. (2004). The Rise and Fall of the Broadway Musical. Boston: Northeastern University Press.</p>
<p>This book is actually written from the viewpoint that pop/rock and modern cast recordings have destroyed American Musical Theatre. However, his justification for this stance clearly highlights some of the major differences between Golden Age and Contemporary musical theatre. Some interesting points: Sound designers often have to ask trained singers to sing with less volume in order to help them blend with their un-trained counterparts; There are often more speakers spread throughout the audience than there are instrumentalists or singers onstage; Because many cast recordings are released before a show opens or as the show opens, audiences now expect that the live show will sound just like the recording. Therefore, sound designers must use recording studio techniques (EQ, Reverb, Compression) to recreate the cast recording sound in the theatre.</p>
<p>Hixon, Thomas J. (2006). Respiratory Function in Singing. Tuscon: Redington Brown.</p>
<p>This is an excellent book on how the breathing for singing REALLY works. No myths, no voice teacher fluff. The author is a respiratory therapist and backs his statements with scientific research. Important points for CCM singers include: Higher lung volume = Louder increased intensity (louder singing); Low diaphragmatic breathing induced tracheal pull (basically the lungs pull the larynx down, which pulls the vocal folds apart and makes it harder to belt but easier to not carry too much chest voice into the upper range. </p>
<p>Kochis-Jennings, Karen Ann, Finnegan, Eileen M., Hoffman, Henry T., Jaiswal, Sanyukta. (2012). Laryngeal Muscle Activity and Vocal Fold Adduction During Chest, Chestmix, Headmix, and Head Registers in Females. Journal of Voice. 26, 182-193, 2012. Retrieved March 11, 2012 from Science Direct.</p>
<p>In this study, the researchers used electromyography, a process which measures electrical impulses through needles inserted into muscles, to investigate the interaction of the “chest voice muscle” (thyroarytenoid) and “head voice muscle” (cricothyroid) in singing. There results are exciting and ground breaking. In 1967 Vennard said that airy singing was often a result of incomplete vocal fold closure and that if a singer worked on their chest voice, they would likely see their head voice improve. With this study showing activation of the TA (“chest voice muscle) at rates between 20 and 40% of maximum activation in the seven singers studied, there now seems to be scientific evidence for the need to re-visit Vennard’s work.</p>
<p>Jones, Sarah. (2010, January 1) Music: The Joy of Glee. Mix Online. Retrieved on March 22, 2012 from Mixonline.com</p>
<p>This is one of the many articles published by Mix Magazine describing the audio processing equipment used in creating the live and recorded sound of professional artists. In this article, the designer of Glee talks about how he attempts to make the singers sound larger than life, or as he says: “Glee is all about vocals — big, huge vocals.’ Anders likens them to the way the show characters might sound in their own minds. These kids, they’re like, ‘We sound amazing, we’re huge,’ and that’s what you want — big, grandiose sound.”</p>
<p>Sanders, Sheri. Rock the Audition, Milwaukee: Hal Leonard, 2011. Print.</p>
<p>Sanders book is excellent in many ways. The DVD that she includes allows readers to hear and see what she speaks about in the book. Her interviews with casting directors are top notch and help drive home a very important point for aspiring Broadway performers – its not about how loud or how high you can sing. Its about what you bring to the room, who you are, and what you have to say. In summary her book is about giving yourself the freedom to be yourself.</p>
<p>Titze, Ingo. “Belting and a High Larynx Position.” Journal of Singing, May/June 2007 Volume 63, No. 5, pp. 557–558. Print.</p>
<p>Ingo Titze is one of the world’s leading voice scientists. In this article he explains why a high laryngeal position can be useful to a belter. His explanation of formant tuning may require further reading to be understood, but he clearly lays out why a lowered laryngeal position (as often taught in classical lessons) can be counterproductive. </p>
<p>Vennard, William. (1967). Singing: The Mechanism and the Technic. (5th ed.). New York: Carl Fischer.</p>