Andrew Mee has started a blog series about building a USB MIDI 2.0 device.
Unfortunately for Windows developers, Windows does not yet support MIDI 2.0 like Google and Apple devices do, however Pete Brown is blogging about the progress.
1. The page https://www.pjrc.com/teensy/td_libs_Audio.html has a typo: "deisng" instead of "design"
2. The page https://www.pjrc.com/teensy/td_libs_AudioConnection.html has a typo: "taht" instead of "that"
3. The page https://www.pjrc.com/teensy/td_libs_AudioNewObjects.html, in the section...
Brief specs and details are good to start with, but there should definitely be links to more detailed information either on separate pages or further down the same page.
1. The libraries page only shows Teensy 2.0 through 3.x :eek:
2. The code in the section "Pushbuttons To Control LED Colors" of tutorial 3 has the comment "// use mode one when the first button is pressed" which should read "second button" :p