Here is a collection of images for notation.  If you are using these in a Cloze with drag and drop on Otus set the parameters under Response container (global) to 55px width and 250px height.  You can play around with those settings if you like - those numbers work for me.

Quarter Notes:
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Here is a collection of generated tones to use for tuning/starting pitch/etc.  This post will be updated as I make them!  After a collection is complete I will make a .zip file available to download.