
In this set of chords, we move the B shape (based on the A form) to the C# Major chord at the 4th fret, and then to the D#m (fret 6 - with flatted 3rd), & the F# shape (based on E Form) to the G#m (fret 4 - yet with a flat 3rd). The E#o is a decent fingering for thediminished chord.
There are 6 sharps in the key of F sharp (F#). The sharps are F#, G#, A#, B, C#, D#, E# (everything but the B). Note that the key of F has only 1 flat (B-flat) - this is the 'opposite' of the key of F# (what is sharped in F# is natural in F).
Remember the total amount of sharps & flats for keys with the same core letter name (half step away) always equals 7. In this instance, we have 6 sharps (in F#) + 1 flat (in F) = 7.
We could say that the key signature of F# is 2 naturals: B and F (E# is F), Just a note here to say that we can think about tone groupings (keys) in different ways than the bloated circle of 5ths. Of course, the key of F# is the same tone set as the key of G flat (Gb). Is it possible that just by naming this key something different, it could possibly change its color or mood?
Let's always look for relationships between guitar chords: similarities and opposites.
Example: the chord A minor is composed of the tones a, c, and e. If we want A# minor, sharp everything - a#, c#, e#. Same for D minor; D# minor is d#, f#, a#.
Another: G#m is g#, b, d#. Gm is g, b-flat, d. 'Opposites.'