The lion's share of "Heartbeat" consists of earwigs and sparkling pop tracks that work towards their refrain. No detours, the next ecstasy is only a stanza away. The escalation level increases steadily with the number of choruses and so this mix is perfectly implemented. Sing along action (on almost every song) and goosebumps are guaranteed. Pop pearls from the 70s, 80s and 90s are uniquely combined with current hits and cast a spell over everyone. Rarely has good spirits been so convincingly bundled.