A♭-Minor is a musical key that consists of the notes A♭, B♭, C♭, D♭, E♭, F♭, and G♭. It is characterized by its dark and somber sound, often used in various genres to evoke deep emotions. The key signature has seven flats, making it one of the more complex keys to play. In classical music, A♭-Minor is frequently found in compositions by composers like Frédéric Chopin and Johannes Brahms. The key is also used in contemporary music, providing a rich harmonic foundation for songs and pieces that require a melancholic or introspective atmosphere.