For free for the enthusiast I offer:
Encyclopedie van de muziek, deel I and II, by Arntzenius, Badings, Schallenberg and Smits van Waesberghe,
Uitgeverij Elsevier, 1957 (Winkler Prins stichting)
The books are in hard cover, weigh a fair amount, and they include Music theory ,”muziek en techniek”,as well as alphabetical list of music terms and composers etc., black and white illustrations.
Please pick up (UBC area), or email to arrange something. My email is saskiastomps(Replace this parenthesis with the @ sign)telus.net.