Gary Moore's guitar solo on Parisienne Walkways is a masterclass in slow blues phrasing, vibrato, and sustain. Moore bends notes with a physical intensity that makes every sustained tone feel like it costs him something, and his vibrato — wide, slow, and deeply felt — is among the most recognizable in rock. Phil Lynott wrote the lyrics and played bass, and the track became the most celebrated recording of Moore's long career.

Reference:

Wikipedia: Parisienne Walkways

https://en.wikipedia.org/wiki/Parisienne_Walkways