I'm asking this more to satisfy my curiosity rather than because I have a problem, so don't spend too much time on it.
I am writing a Bulgarian word form as kr\'{a}d-\acutus{\textschwa}t, which is 3pl present of KRAD `steal', segmented into stem-suffix. The \acutus{a} command puts an acute accent on top of the schwa (\textschwa) in the suffix and is provided by the metre package. For some reason, using the normal acute accent code (\'{\textschwa}) produced the accent preceding the schwa character.
Anyone know why (in simple terms!)?
Update: if I enclose the text in a \textipa environment, the problem goes away. I don't care why now - if you want to delete this thread and are able, please feel free.

Cheers,
pandammonium