In keeping with Tolkien's heavy use of song and music in his books, "Lord of the Rings Online" has a player music sub-system akin to MIDI that has been the subject of a Harvard anthropological study. Characters on reaching level 5 can learn to play musical instruments, including Bagpipes, Clarinet, Cowbell, Drum, Harp, Horn, Lute, Pibgorn, and Theorbo. Using keyboard macros, instruments can be played in real time on three octaves and abc notation, with the music broadcast to nearby player characters. Players can also play pre-programmed pieces from user-created ".ABC" script files using the game's music notation, similar to MIDI files. Players often hold impromptu public performances, in solo or as bands at places such as The Prancing Pony Inn in Bree. Communities also regularly organize music events and mini-concerts such as "Weatherstock": Woodstock above the Weathertop.