you can send them if you rename the extension to .mid (it will still play) and then send them as a pix message.
verizon info :
What file types can I use to create picture / video messages?
You can compose messages using images, audio files, video files, and text.
The following image types can be used to create a picture message/video message:
* JPEG (*.jpg, *.jpeg, *.jpe)
* BMP (*.bmp)
* PNG (*.png)
* GIF (*.gif)
* 3G2 (*.3g2)
* 3GP (*.3gp)
* MPEG4 (*.mpg)
The following audio type can be used to create a picture message:
*
MIDI (*.
midi)