'by': can't say for the moment, need larger and/or bigger sample first (http://studioarrc.com/wp-content/themes/mbi-theme/images/studio-arrc-my_... or http://studioarrc.com/wp-content/themes/mbi-theme/images/studio-arrc-foo... if it happens to be the same font)
'Trafona': looks like Kaufmann to me (/T top right terminal tweaked?).

EDIT: after further inspection, 'by' should be set in Dream Lover.

Kaufmann it is!
I have my doubt about Dream Lover. The b and the y have these extensions. They're perfectly opposite of each other. Maybe customized?

Thanks a lot !!

I have my doubt about Dream Lover. The b and the y have these extensions. They're perfectly opposite of each other.

Was a bit hasty to conclude. The other samples are surely using Dream Lover and as there're no alternates corresponding to these glyphs but still convinced it's the same font, they may have customized it.

Do you happen to know the font Studio Arcc used in the rest?
It seems like Futura, but the I has a slight slab...

TJ Evolette A Light is being used on the website, and for some of the type in the printed collateral. However, I'm not seeing the curved-footed R in the glyphs, so that may be custom.

Do you happen to know the font Studio Arcc used in the rest?
It seems like Futura, but the I has a slight slab...

The only other I could see is a sans and should be TJ Evolette.

Great, thanks again !!