La La La La La La LAAAAAAA....A one hour singing lesson from a holistic perspective.eidi Siegell has taught voice and songwriting to students ages six to 76. Her professional career spans opera, jazz and blues, including extensive work in contemporary musical theatre, film, video and recordings. She has performed on stages and in clubs throughout the U.S. and Canada. As a songwriter and composer, her original compositions have been featured in narrative and documentary films, in musical theater pieces and on websites. Her approach to teaching voice is informed by her studies of bel canto and other vocal techniques, the work of Alfred A. Tomatis, the Alexander technique, meditation, yoga, speech therapy and compassionate communication.