You're looking for a helpful resource on piano chord progressions! Here's some useful information:

As a pianist, you're likely no stranger to chord progressions. But with 400 piano chord progressions at your fingertips, you'll be able to take your playing to the next level. In this article, we'll explore the world of piano chord progressions, covering the basics, popular progressions, and even providing you with a free PDF download of 400 chord progressions.

Improvisation Skills:

Knowing where a song is "likely" to go allows you to solo with confidence.

• Chords: Dm9 - G13 - Cmaj9 - A7(#5)
• Rhythm: Heavy swing, play the 9th on the "and" of 4.