Shorter's collaborations with Davis marked a new direction in the development of jazz one that would lead to a controversial style dubbed Fusion, which relied heavily on electric instruments that gave the music something of a pop feel.

NPR: Saxophone Legend Wayne Shorter

He went on to detail the use of torture instruments and electric shocks, adding that they were now seeing "a lot more violence against detainees without questioning" whereas previously false confessions would have been illicited by government security.

BBC: Amnesty outlines Syria torture evidence

The Mekons' new album, Natural, finds the group opting for acoustic instruments over screeching electric guitars.

NPR: The Mekons Go 'Natural'

But today his music is looking back, using more traditional African instruments and a less electric sound.

NPR: Salif Keita Returns to Mali's Traditional Sounds

The old church organ was replaced by a keyboard some years ago and the church makes use of young members who play electric guitars, violins and wind instruments.

BBC: Congregation outgrows church

He can point to the fact that the manufacture and export of instruments of torture, such as electric-shock batons and leg irons, has now been banned.

ECONOMIST: The arms trade: Business as usual | The

For the Buffalo Springfield tracks "Special Care" and "Questions" on which Mr. Stills recorded all the instruments except the drums his electric guitar stings and bites with unexpected force.

WSJ: Carry On, Stephen Stills | By Jim Fusilli

The insistent electric guitar that had been quietly coloring the sound behind the tandem acoustics starts to build, and the other instruments drop back and let it fly.

NPR: Instrumental Hard Rock, Teasing as It Pummels