A wide variety of music was available in Organ Roll format at the time, from classical works by renowned composers to popular show tunes. However, the organ is a magnificent instrument that was meant to be played by an accomplished organist. The complete restoration of Callanwolde's Aeolian organ was the result of the dedication and perserverance of the members of the Callanwolde Guild . The project extended over two decades and involved the efforts of many individuals. An extensive history of this project was compiled by Guild Member, Norma J. Bishop.
Guild projects continue to fund the maintenance and preservation of the organ.
The Aeolian organ was a popular feature in fine homes of the guilded age, such as Longwood Gardens in Kennett Square, Pennsylvania and Reynolda House in Winston-Salem, North Carolina.