I want to thank you for sending the copy of the Yamaha PSR-E403 keyboard manual. It arrived yesterday, and your letter arrived today! You are correct about needing the magnifying glass to read the manual! But it was very helpful in terms of learning about the features available.
It is odd that while it does allow for six different tracks per song, it still only has room for five songs. While I suppose I could use two tracks and end up having two different songs stored, it is assumed that one has access to a computer and thus can save songs to a hard disk.
It does have a few added features over my current keyboard but I will probably stick to the one I have for a while longer.