Biographical Dictionary of the Organ is the website on Organists, Composers, Organs and Organ Builders.
According to PR-model, organ-biography.info is ranked 325,510th in multilingual Wikipedia, in particular this website is ranked 228,988th in English Wikipedia.
The website is placed before freshfacts.co.nz and after ibjcafe.com in the BestRef global ranking of the most important sources of Wikipedia.