I was only familiar with a handful of Tokunaga's songs that I were featured of compilations and such but thanks to a russian blog I stumbled upon J-Music, I was allowed access to nearly his entire catalog.
Featured in this post are his first records which I have re-tagged in Japanese but if you would like, I urge you to check out the source links. I only plan to post his albums from the 80s but if you are interested in more, this site definitely has it. Enjoy!
1. レイニー ブルー
8. Air Port 20:13
Video Link to Air Port 20:13