$ mtp-connect --getfile "Norah Jones - 01-Don't Know Why.mp3" track.mp3
libmtp version: 0.3.7

libusb couldn't open USB device /dev/bus/usb/003/002: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/004/002: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/007/004: Permission denied.
libusb requires write access to USB device nodes.
Get file Norah Jones - 01-Don't Know Why.mp3
Getting Norah Jones - 01-Don't Know Why.mp3 to track.mp3
^Cogress: 7450640 of 7450640 (100%)