# Mona guitar solo > John Cipollina & Gary Duncan's guitar solo on Mona by Quicksilver Messenger Service (1969) starts at about 3:00. From the album Happy Trails. Canonical URL: Quicksilver Messenger Service, 1969, from *Happy Trails*. Solo by *John Cipollina & Gary Duncan*. A pounding Bo Diddley groove that becomes a launch pad for wiry, reverb-drenched interplay between Cipollina and Duncan. Mona by Quicksilver Messenger Service is #2 in our ranking of the best Quicksilver Messenger Service guitar solos. The solo is played by John Cipollina & Gary Duncan and the song was released in 1969. ## In our lists - [The Best Quicksilver Messenger Service Guitar Solos](https://greatestsolos.com/list/quicksilver-messenger-service-guitar-solos/) — #2 ## Sources ### Who played the guitar solo on Mona? John Cipollina & Gary Duncan played the solo on Quicksilver Messenger Service's Mona (1969). ### What guitar was used on the Mona solo? A gibson sg through a Standel amp, according to widely reported accounts. --- GreatestSolos ranks the greatest guitar solos by consensus across published lists. Agent guide: [llms.txt](https://greatestsolos.com/llms.txt) · [Sitemap](https://greatestsolos.com/sitemap.xml) · [Dataset (CSV)](https://greatestsolos.com/data/greatest-guitar-solos.csv) · [How we rank](https://greatestsolos.com/method/)