Comment 8 for bug 651499

Gaurav Agarwal suggests we use CTRL + SHIFT + E for the Export shortcut because this matches CTRL + SHIFT + I for Import Audio. This seems OK to me, even though it is slightly more of a handful.

If we are going to have an export shortcut it seems silly not to have one for export multiple. Most of the obvious CTRL + SHIFT combinations are taken, and CTRL + ALT + E usually types "é" on Windows, so I suggest CTRL + SHIFT + L as my best idea.