From Technology Review…

It’s every guitar player’s nightmare: you step onstage, strike your rock-god pose, triumphantly strum the first chord of a song–and discover that your guitar is out of tune.

A new line of instruments from Gibson Guitar now promises to banish this scenario to the dark ages with high-tech self-tuning technology built into the company’s flagship electric-guitar models.

The idea is drawing both kudos and criticism from guitar professionals and purists. On blogs and forums around the Web, some players call it an inexcusable crutch for sloppy players. Others, particularly those who use different tunings for different songs, say it could be a godsend.

Either way, the system is a sign that the music world’s digital transformation is reaching ever deeper, even into the rarefied circles of high-end analog instruments…