The AB Guide to Music Theory (Revision)

In preparation for starting on the first project I read through chapters 14-18 of the AB Guide to Music Theory Part II which came as part of the course materials. Whilst the majority of it was not new to me, I found it a useful reminder none the less, as there was quite a lot of terminology I had forgotten (or remembered the term but couldn't precisely remember its definition).

I did find it interesting in the section about part writing where they mentioned how there are parallel intervals which should be avoided, such as unisons, 5ths, octaves (and compounds of these intervals). I remember when doing harmony at school how strongly these rules were enforced as something Bach would never do. In the book Eric Taylor does admit that Bach broke these rules occasionally; in fact there are entire websites dedicated to this subject, some examples people find are more convoluted that others. One example I do like is http://bachdidwhat.tumblr.com/