Other than a short snippet of his voice as he performed in a Christmas cantata in 1981, an Oklahoma! practice audio (the link will take you to my personal blog where I published the audio clip) is the only sample of his voice that I have. (My deepest thanks to the late Bob Jones for sending the tape to Carlene twenty years ago.)
If you have other audio or video of Bruce, please let me know. RememberBruceB@gmail.com.