Create a Folder for your .wav and/or other Sound files in File Transfers.
Once you have your sound uploaded and tested (under 1000kb), you can copy the address of that file, start a new discussion in Sound Poems, and paste it in above or beneath your poem - or in whatever configuration you want.
However, Sound Files uploaded directly from your computer do not attach to the Message form, and if they do - they do not function as of yet.
Susan
click on this test file: