This week’s IROCKU Piano Tip looks at 9th chords, in particular, Dominant 9th chords. Dominant 9th chords are extensions of dominant 7th chords that can help open up your playing. Dominant 9th chords are very common in blues and rock. In this video we show the Dominant 9th chord and we also teach the flatted 9th chord which is a useful passing chord when playing blues and rock. We also introduce the sharp 9th, AKA the Jimi Hendrix chord, which adds richness to your rock and blues playing. The video begins by teaching the dominant 9th chords in C, F, and G and then teaches the flat 9th and the sharp 9th chords. The flat 9th chord feels like a passing chord and works best in that context. The flat 9th without its root note is actually a diminished chord; and diminished chords are great …