(sorry for my bad english) There is a way to play a sound and sing another at the same time ("double sounds"). It's not easy to play but it's possible (I can play them with my euphonium). In fact, when this "Romanza" was first played, the trombonist couldn't play those double sounds, so music started in measure 11 and finished in 124 with a different Coda. If you want me to send the 'alternative' version to you, just let me know. Thank you for your interest. Juan Ignacio López.
The Xaphoon, often referred to as a "pocket saxophone," is a unique wind instrument developed in the 1970s by Brian Wittman in Maui, Hawaii. This compact instrument combines the qualities of a clarinet and a saxophone, yet it is much smaller and made either from bamboo or plastic. The Xaphoon offers a distinct, rich sound that belies its size, making it a favorite among traveling musicians and those looking for a portable, yet expressive instrument.