I only want playback as a checking function; I want to hear the mistakes I made with accidentals etc. So I really don't want tempo variations, and prefer to specify some speed (like quaver=90) throughout. However, it seems that MS is being terribly clever, and when I write "stringendo" the playback speed changes. Is there any way I can have a simple checking playback that operates at fixed tempo (and also, separate issue, at fixed volume)? Or how can I understand exactly what is supposed to affect playback speed? And the same goes for volume.