https://www.musical-u.com/learn/solfa-and-the-score-pentatonic-improvisation/
Pentatonic scales have an unparalleled versatility for improvisation. Whether you use them on guitar, piano, another instrument or when singing, they provide you with a universal power to move people musically. https://www.musical-u.com/learn/solfa-and-the-score-pentatonic-improvisation/