I like number #3 better than #2 because of how compact it is.
In #3, I would rather the words "the" and "corporation" be separated in some way so that their text doesn't run together. Although, I do realize that could result in in being less compact.
The symbol is interesting, but I don't think it's a perfect fit.
I really like the symbol for #6 very much. I'm not sure if I like the horizontal line above Hendrix as is or not. I agree it needs a little more to it than a symbol and the words though. I would also like to see Hendrix be a little taller maybe to take advantage of the full height of the symbol and not have any wasted space above "the".
I don't really like overlapping/blending like in symbol #4.
Regarding #6 and #15, I'm still not sure if I like the horizontal line above Hendrix or if I like it better not there. Sorry, I will ask for other opinions.
I do think maybe adding some stylish element to some of the letters in "Hendrix" would be nice.
I like the way that the gray part of #17 looks like an arrow pointing forward.
I like the way that #18 has the X that is elongated and chopped through/disconnected.
Could you play around with that a little more? I would like to see the forward arrow look be a little more dramatic. Maybe by elongating the gray part of #17?
Can you please edit #15 to have a line under Hendrix?
Can you also make a blue version using colors similar to #1 and #7?
I still would like to see something special done with "Hendrix", but I'm not sure what yet. If you have any ideas, please let me know. I like #18 and #21, but I don't think the effect of the X is exactly what I'm looking for.
Can you please try bringing the bottom right leg of the X down to the line (like you did for the bottom left leg of the X in #18)? I would like to see a few options where different lines of the X are in gray and chopped.