Authors Jaana Turunen I am a professional musician living in Kuopio, Finland. I am a singing teacher, vocal coach and choir conductor with 25+ years of working experience. I became a Master of Music from Sibelius Academy (Aalto University of Arts, Helsinki) in 1998. In 2015 I became an Estill Master Trainer. Learn more here. Antti Annola I am a professional singer and voice teacher from Oulu, Finland. I currently work as a musical theater actor and as a voice teacher for singers and actors. I also work as a lecturer in Pop&Jazz Voice at Oulu Conservatory. I hold a BA degree in vocal pedagogy and became a certified Estill Voice Training teacher, Estill Master Trainer, in 2015. Please visit my website for more information.