For Fans of Guitar Hero

When Guitar Hero peaked, critics worried it was a substitute for real music. The opposite happened. Millions of players went out and bought actual guitars, discovered Led Zeppelin and Rage Against the Machine for the first time through the tracklist, and built lifelong fandoms out of a five-button plastic toy. The franchise was always a discovery engine dressed as a game. The backcatalog licensing choices were often hipper than mainstream radio, and every blistering boss battle with Through the Fire and Flames or Knights of Cydonia was also a recruitment ad for the real band.

Rock Band 3 introduced a pro mode that used real guitar fingering, a full 25-key Keytar, and three-part harmonies. It was the moment the franchise stopped being an arcade abstraction and started being an actual music education tool. The song library was enormous. The online multiplayer was seamless. If you played it seriously, you could transfer genuine skills to a real instrument. That it coincided with the market oversaturation that crashed the plastic-instrument genre is one of the great commercial tragedies in gaming history: the best version of the idea arrived just as the idea burned out.

Both Guitar Hero and Whiplash are about the obsessive pursuit of musical perfection -- one wraps it in colored dots and crowd cheers, the other strips it down to blood, exhaustion, and the complicated psychology of a teacher who breaks his students to build them back stronger. They share an engine: the idea that music mastery is physical, repetitive, almost athletic. Watch Whiplash right after finishing a brutal Expert run and the continuity is obvious. The crowd noise is just quieter in Damien Chazelle's version.