I thought a list of organ related abbreviations might be useful, especially for those who are not familiar with the organ world. The list will be added to as needed. If you know of some I should add, please drop me a line!

ABRSMAssociated Board of Royal Schools of Music
ARCOAssociate of the Royal College of Organists
BIOSBritish Institute of Organ Studies
CAMCertificate of Accredited Membership
CRCOColleague of the Royal College of Organists
FRCOFellow of the Royal College of Organists
IAOIncorporated Association of Organists
IBOInstitute of British Organ Building
LOALocal Organ Associations
OCSOThe Organ Club Student Organisation
RAMRoyal Academy of Music
RCORoyal College of Organists
RSCMRoyal School of Church Music
SWOSociety of Women Organists
YOSTYoung Organist’s Scholarship Trust
YOTSYoung Organists Training Scheme