Most music players play songs. AIRA Mac performs them. It analyzes your local music library for BPM, key, energy, song structure, and vocals, then creates seamless DJ-style transitions using beat-synced, phrase-aware mixing. With 9 intelligent crossfade strategies, vocal clash detection, and heart rate–adaptive Pulse Mode, AIRA acts as an autonomous AI DJ—turning your music collection into a continuously evolving listening experience.