Olga Boczar: Singing & piano teacher, doctoral degree, amazing person, one of the best young jazz vocalist in Poland, performing with top international musicians, nominated to Fryderyki Protected content Grammy).
Stefan Stefaniak: Guitar teacher who proves you can play anything on a guitar, from Bach to Rihanna. Studied both classical and jazz guitar on the highest level, experienced in ABRSM preparations. Cooperates with various artists as a session musician & makes his solo stuff as well (search for: “Stefan Stefaniak Guitar Masters Protected content
If you are looking for another instrument not listed above let us know. Best Stefan