What main octave scale is western music based on?

Western music is primarily based on the diatonic scale, which consists of seven notes and includes five whole steps and two half steps within an octave. The most common diatonic scales are the major and natural minor scales. These scales form the foundation for much of Western harmony and melody, influencing various genres and styles throughout music history. The octave itself is a central concept, representing the interval between one musical pitch and another with double its frequency.