In April 1991, Tagg returned to the UK where he established the basis of what became EPMOW (Encyclopedia of Popular Music of the World).
Aprillis 1991 naasis Tagg Inglismaale, kus pani aluse väljaandele, millest hiljem kujunes "Maailma Popmuusika Entsüklopeedia" (EPMOW, "Encyclopedia of Popular Music of the World").