被称为代表了自由、热情和诗意的吉他，不似静止的钢琴，是流动的乐器。六弦吉他有多种弹奏的方式，再运用回声扩大器与和弦技巧，就赋予了摇滚和其它音乐完全不同的声音，因此成为了一个世代的象征。1930年开始的电吉他早在摇滚乐前就出现，在蓝调音乐先是扮演了重要的角色，之后在乡村摇滚乐中被灵活地运用，然后终于在摇滚乐中跃升为最重要的代表性乐器之一。
本集中主要记录了许多摇滚乐中吉他手的先驱如查克贝瑞、齐柏林飞船合唱团的吉米佩吉和无名英雄詹姆斯波顿等人与吉他的历史渊源。山塔那谈到玩音乐时的不断咒骂、弹奏着《爆发》的范海伦忘我的神情、摇摆唱着乡村摇滚《肯达基的蓝月》的猫王埃尔维斯普里斯莱的自在……都让人心醉神迷。比比金大谈吉他弹奏的技巧、布鲁斯史宾斯汀更将吉他的香味用比喻的方式陈述，透过屏幕，让人嗅到了吉他的气味。

Live Aid was a dual-venue concert that was held on 13 July 1985. The event was organized by Bob Geldof and Midge Ure to raise funds for relief of the ongoing Ethiopian famine. Billed as the "global jukebox", the event was held simultaneously in Wembley Stadium in London, England, United Kingdom (attended by 72,000 people) and John F. Kennedy Stadium in Philadelphia, Pennsylvania, United States (attended by about 100,000 people). On the same day, concerts inspired by the initiative happened in other countries, such as Australia and Germany. It was one of the largest-scale satellite link-ups and television broadcasts of all time: an estimated global audience of 1.9 billion, across 150 nations, watched the live broadcast.[2