Hello and thanks for the submissions! Here are my thoughts:
#8 - i really like the font and simplicity. I don't like the cross though, so maybe experiement with something else there and try adding a color (greens or blues, maybe?) to it as well
#9 - i like the idea of the disappearing font, only without the black font below it. Perhaps a disappearing font into a logo element (subtle soundwave or swoosh)
#10 - a little too simplistic and the main font is not the right style (too feminine)