Mr. Robert Cooke

Hello, I have just purchased your iBook 'Essential Music Theory Volume 1', I am enjoying the style and quality of the work, unfortunately though, none of the sound snippets are working at all, obviously I have checked all of my computer settings and the sound is working on anything else I play and want to listen to, has this occurred before, for any other people?
I would appreciate your feed-back.
Robert Cooke

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Nov 03, 2017
I will check into this
by: Simon

I’m very sorry to hear that! I haven’t had other reports of this happening but it is clearly to do with the book file, not your set up.

I will download a copy and check it. Could you let me know which version of Mac OS or iOS you are using please?

You can email me directly, simon (at) or post a reply here.


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