Principles of Music: The Motif

In this video I take a brief look at some of the ways (not all) composers can alter their motifs. I try to keep things as general as possible so that future videos can build off of topics I have already outlined. If you have any questions please feel free to write a comment below.
For those of you wondering why leitmotifs were not mentioned in this video. I feel this is a topic worthy of it's own separate video.

A special thanks as always to musopen.org and imslp.org for offering free public domain sheet music and recordings online.

Links to Pieces used in Video:

Beethoven - Grosse Fuge Op.133:
https://musopen.org/music/1024/ludwig...

Bach - Goldberg Variation No. 1:
https://musopen.org/music/937/johann-...

Brahms - Variations on a Theme by Paganini Book I (Performed by Peter Bradley-Fulgoni):
https://musopen.org/music/2989/johann...

Beethoven - String Quartet No. 15, 3rd Movement:
https://musopen.org/music/1028/ludwig...