A musical scale is a fundamental element of Western music theory. It represents a sequence of pitches or notes that form the basis of a melody. Synonyms for this term include music scale, scale, tonal scale, and diatonic scale. The term "music scale" encapsulates all the different types of scales, such as major, minor, pentatonic, chromatic, and blues scales. Scale, on the other hand, is a more general term that could apply to any system of measuring or dividing things. Tonal scale implies a more specific type of scale, one that is based on a particular tonality or key. And finally, the term diatonic scale refers to a scale consisting of seven distinct pitches and a specific pattern of whole and half steps.