My voice teacher (who is an opera singer) is also a cantor. She assigned a Ladino song to me that is an excellent breathing exercise. My copy of it is from a book of Ladino songs that include English translation and a pronounciation guide. I will get the name of the book the next time I see her and post it here. The song I had to learn is "Yo M'Enamori d'un Aire". I love it, but it is a challenge.