Pentatonic scales are a fundamental element of Western music theory, consisting of five notes per octave. These scales have a long history dating back to ancient civilizations and have been utilized in various musical traditions worldwide. In Western music, pentatonic scales are commonly found in folk, blues, rock, and pop music genres. They are known for their versatility and accessibility, often used for improvisation and melody creation due to their harmonic simplicity. Musicians and composers like Bob Dylan, Jimi Hendrix, and Led Zeppelin have incorporated pentatonic scales extensively in their works, contributing to their widespread popularity and influence. One curiosity is that while pentatonic scales are relatively simple, they offer endless opportunities for creativity and expression, making them a staple of Western musical vocabulary.