The key of G is the magic key on the mandolin first form scales on the G and D strings and second form scales on the A string and the E string. Not surprisingly, music for the mandolin often uses this key. 1-1-2-2 refers to the order of the forms on the G-D-A and E strings. You can recognize the Key of G because there’s only one sharp in the key signature.
The Flowers of Edinburg first appeared in James Oswald’s Curious Collection of Scots Tunes, under the title “My Love’s bonny when she smiles on me.” It is suggested that the Flowers in the title refer to Edinburgh’s ladies of the night, other sources think the title refers to the “flowery” scent of Edinburgh’s chamber pots. Either way this lovely tune is often used for Scottish Morris dances.
Sally in the Garden is an old Appalachian tune often know as Hog-Eyed Man, with often humorous lyrics. This version is played on the G, D and A strings.