Music of Scotland born in Scotland, including original lead singer Bon Scott and guitarists Malcolm and Angus Young, though by the time they began playing, all three had moved to Australia. George Young, Angus and Malcolm's older brother, found success as a member of the Australian band The Easybeats, later produced some of AC/DC's records and formed a songwriting partnership with Dutch expat Harry Vanda. Similarly Mark Knopfler and John Martyn were partly raised in Scotland. During the 1960s, Scotland contributed two innovative rock musicians who were central to the international scene; folk/psychedelia guitarist/singer/songwriter Donovan (Donovan Phillips Leitch), and blues-rock/jazz-rock bassist/composer Jack Bruce
Angus Young he would begin using in 1977, was also used as a compressor and a booster in his signal to "fatten up" his tone. Ever since adding it to his rig, it was used on several albums in the studio for chosen rhythm guitar tracks and all lead guitar tracks. Beginning with "Rock or Bust", due to the discontinuation of the Schaffer system, Young began using a replica of the unit's preamp with a commercial wireless unit. Contrary to popular belief, Angus and Malcolm have both stated in guitar enthusiast magazine interviews that very little pre-gain, if any, is used on