The phrase "a dramatic note" is correct and usable in written English.
It can be used to describe a significant or impactful moment in a narrative, speech, or piece of writing that evokes strong emotions.
Example: "The story concluded with a dramatic note, leaving the audience in stunned silence."
Alternatives: "an emotional tone" or "a poignant moment."
Musette and Drums wrapped up the album on a dramatic note – which would become the hallmark of later releases.
Carter's shot was indeed long, bouncing high off the right side of the basket as time expired to close this terrific series on a dramatic note.
Reagan's presidency began on a dramatic note when, after the inaugural ceremony, he announced at a luncheon that Iran had agreed to release the remaining American hostages.
The bright scarlet of the boatman's vest, just off center, snaps everything into place, and it strikes a dramatic note, like the on light of a security alarm.
SummerStage's season of free theater and performances in city parks ends on a dramatic note on Friday, with an all-female audience-interactive adaptation of Aeschylus' "Seven Against Thebes," from the Faux-Real Theater Company.
THE longest bull run in a century of art-market history ended on a dramatic note with a sale of 56 works by Damien Hirst, "Beautiful Inside My Head Forever", at Sotheby's in London on September 15th 2008 (see picture).
In "Touching Home" Ed Harris, an actor almost incapable of sounding a false dramatic note, gives a deeply affecting portrayal of a homeless alcoholic with a gambling habit living in Northern California.
In the moments before his fourth major operation, he spoke candidly about the anxiety he felt, and he promised to end his career on a typically dramatic note.
On a more dramatic note, you can see the landscape in motion in the upscale Magnolia neighborhood if you follow any of the stairways down from Magnolia Boulevard to Perkins Lane.
On an even more dramatic note, the major oil giants have begun following suit, whether begrudgingly or not, demonstrating a belief in the inevitability of an eventual tax on carbon.
"There's a whole web of deceit going on in the upper echelons of the FBI that they're trying to sort through, and it ends on an even more dramatic note".
