Here are some useful movable minor 9th chord shapes shown in the first four frets. As with all new chord types, learn each shape and then transpose it to all keys.
Here is a progression demonstrating minor 9th chords. Practice it with one shape and then with several different shapes.
Each time you learn a progression using a new type of chord, practice it with several different shapes as well as transposing it to other keys. If you make a habit of this, you will find memorizing chord shapes easier because they make sense in a musical context rather than as abstract shapes.
A seventh sharp nine chord is created by adding a sharpened 9th degree to any dominant 7th chord. For example, a C7#9 chord contains the notes C, E, G, Bb and D# (1, 3, 5, b7 and #9). The following diagrams demonstrate some common open seventh sharp 9 chord shapes.
The seven sharp nine chord is often referred to as the "Hendrix chord’ because it was a particular favorite of Jimi Hendrix, especially the voicing shown for B7#9 and C7#9. Hendrix often used it in the key of E by playing it in the 6th position