Je dirais des coups de corne.
Joyeux Noël!

I don't know whether you're looking for a definition, as well as a translation. If not, my apologies :-)

I don't really know how to translate it concisely, but maybe the definition will help you. I couldn't just leave you with "coups de corne" ;-)

"The Horns
The biggest influence on harmonica players are horn players, especially saxophone players. Though sax players can play any note combination they wish, their lines are commonly approachable on the harmonica. Ideas borrowed from sax players can be fresh material for the over-used standard blues harmonica licks that we normally play. It sure worked for Little Walter!

We learned that horn lines could be approached in two ways. The first approach is playing vertical lines based on chord tones. These are commonly horn punches (one to two note repetitive patterns that change slightly to match chord change). The second approach is playing horizontal lines. These are longer lines (commonly one to two measures in length) that repeat over the entire 12 bar blues progression, commonly with no change (though not uncommon to change a note or two to match chord change)."

http://www.harmonicasessions.com/apr05/accompaniment.html

Horn accents like in a soul song. An arranging technique.



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Note added at 9 hrs 21 mins (2005-12-24 21:11:01 GMT)
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Horn is a synonym for the brass instruments.
Punch is possibly used in the sense of mixing to mean to insert a short sample or bit of recorded music/sound.

Chops The Band - Blow Out -
... des riffs de cuivre inoubliables, samplés et resamplés et entrés au panthéon du hip hop (Le début de " 8th Wonder " de Sugarhill Gang , c'est eux). ...
www.wegofunk.com/Chops-The-Band-Blow-Out_a217.html

Reggaefrance.com - Fiche artiste : Flamengo -
Des lignes de basses digne de celles wailers, des riffs de cuivre puissant, des coeurs, des paroles, une voie et des rythmes terriblement ROOTS ...
www.reggaefrance.com/artiste-61-flamengo.html

Chops The Band - Blow Out -
Leur duo fera ensuite mouche au sein du label Sugarhill pour lequel ils signeront des riffs de cuivre inoubliables, samplés et resamplés et entrés au ...
www.wegofunk.com/Chops-The-Band-Blow-Out_a217.html

[ Busca Salsa ] _ Ray Barretto à Dax - Toros y Salsa 2005 -
Des riffs de cuivre ont mis fin aux éloges, laissant la place à une attaque de Carrillo aux timbales. A un moment il a calé ses coups de cymbales sur les ...
www.buscasalsa.com/article.php3?id_article=449

horn c'est un peu argotique pour inclure tous instruments a vent. Dans les repetitions on a tendance a dire "accents" pour ces "coups" meme si officiellement ca ne veut dire qu'une note marquee par le signe >