The phrase "as being mellow" is correct and usable in written English.
It can be used to describe a state of calmness or relaxation, often in reference to a person's demeanor or a situation.
Example: "He approached the situation as being mellow, which helped to diffuse the tension in the room."
Alternatives: "as feeling relaxed" or "as being calm".
It's just as well they're mellow, for Paterson happily tears into the old favourites until they're nearly unrecognisable.
Where Esquivel is all over-the-top big-band pyrotechnics, Denny's music (also known as exotica) is mellow, quiet, dreamy, drawing from jazz, pop, classical and "third stream" music.
The trend is also seen to some extent in his first album with the rather poor and cheaply recorded rendition of "Another One Rides the Bus" and the unrelenting cynicism behind some tracks such as "I'll be Mellow When I'm Dead", "Mr. Frump In The Iron Long", and "Happy Birthday" the latter most of which being the closest Al gets to a legitimate punk song.
The other room has banquettes as well as tables, and the overall atmosphere is mellow and inviting, whether the LED lighting is red or blue.
The braised short ribs, a gargantuan portion of succulent meat barely clinging to the bone, are mellow and rustic, as is the slow-cooked braised lamb shank.
Clarity reaches the orchestra as well, which, conducted by Grant Gershon, is mellow yet precise.
Your mood is mellow as two horn players summon you, almost reluctantly, to your seats.
That is "Mellow Johnny" as in the French for yellow jersey, "maillot jaune"; and "Juan Pelota" as in "one" and the Spanish for "ball".
When I was a kid in Glendale, we always thought of the beach as a place where everything was mellow and everyone was beautiful and friendly.
As with the curtal, whose sound was mellow, the bassoon was praised for its tone and compared to the human voice, the ultimate in contemporaneous praise.
