I was blown away the first time I heard Roundabout by Yes. [View all]
https://m.
From Wikipedia....for you guitar geeks ....
In its original form, the song began with the acoustic guitar, which Howe played on a 1953 Martin 00-18, but the group soon thought a more dramatic opening was needed.[6] This led to Wakeman playing a note on the piano that was recorded and played backwards, creating an effect that Howe described "as if it's rushing towards you". Wakeman played the lowest E note on his grand piano with the E an octave higher which gave it "a fatter feel".[6] Offord recalled a considerable amount of time was spent to get it right in the studio because it involved a lengthy process of picking the right note to use, and editing it correctly.[9] Howe thought the piano added a sense of drama, intensity, and colour to the song.[9] An early idea had the song start with what Anderson described as "something of a Scottish jig" on Howe's acoustic guitar, which he had played to Anderson in their Glasgow hotel room.[6]
Squire played his bass guitar parts with an overdub that was one octave higher using Howe's Gibson ES-150 electric guitar and mixed with his bass track.[9] To complement Squire's playing, Wakeman played arpeggios on his Hammond C3 organ on his right hand while playing Squire's bass parts with his left. For the song's slower section, he plays a Minimoog synthesiser and flute sounds on a Mellotron which he said gave the section a "Strawberry Fields mood".[6] Apart from his acoustic guitar, Howe plays a 1961 electric Gibson ES-5 Switchmaster throughout the song.[6] Anderson noted the music has a "Scottish feel" to it and described the solo part as like a reel, a traditional Scottish country dance.[8] Wakeman's Hammond organ solo was recorded in one take.