Slide guitar in the context of "Borosilicate glass"

Ryland Peter Cooder (born March 15, 1947) is an American musician, songwriter, film score composer, record producer, and writer. He is a multi-instrumentalist but is best known for his slide guitar work, his interest in traditional music, and his collaborations with traditional musicians from many countries.

Cooder's solo work draws upon many genres. He has played with John Lee Hooker, Captain Beefheart, Taj Mahal, Gordon Lightfoot, Ali Farka Touré, Eric Clapton, the Rolling Stones, Van Morrison, Neil Young, Randy Newman, Linda Ronstadt, Vishwa Mohan Bhatt, David Lindley, the Chieftains, Warren Zevon, Manuel Galbán, the Doobie Brothers, Little Feat, and Carla Olson and the Textones (on record and film). He formed the band Little Village, and produced the album Buena Vista Social Club (1997), which became a worldwide hit; Wim Wenders directed the documentary film of the same name (1999), which was nominated for an Academy Award in 2000.

In music, a guitar chord is a set of notes played on a guitar. A chord's notes are often played simultaneously, but they can be played sequentially in an arpeggio. The implementation of guitar chords depends on the guitar tuning. Most guitars used in popular music have six strings with the "standard" tuning of the Spanish classical guitar, namely E–A–D–G–B–E' (from the lowest pitched string to the highest); in standard tuning, the intervals present among adjacent strings are perfect fourths except for the major third (G,B). Standard tuning requires four chord-shapes for the major triads.

There are separate chord-forms for chords having their root note on the third, fourth, fifth, and sixth strings. For a six-string guitar in standard tuning, it may be necessary to drop or omit one or more tones from the chord; this is typically the root or fifth. The layout of notes on the fretboard in standard tuning often forces guitarists to permute the tonal order of notes in a chord.