Yes you can.
For a list of all the lessons you've purchased:
Step 1: Log into PianoWithWillie
Step 2: Click on "My Account"
Step 3: Click on "Purchased Lessons"
Here is where you can find all of the lessons you have purchased.
To download your video files use the brown button with the downward arrow on it.
To download your sheet music use the blue button with the music note on it.
The blue button that looks like a play arrow will take you directly to the lesson page on our site.
From the lesson page you can stream the video or download the lesson kit. The lesson kit contains mp3s of each lesson, midi files and sheet music.
Here's a video you might find helpful :