Coups d'archet : prépare-toi à l'inattendu !
Lesson time: (10min 34sec)
Zach donne des conseils sur les coups d'archet utiles aux improvisateurs et pour jouer une musique moins arrangée. Il donne une astuce pour penser le feeling 'swing' en triolets plutôt qu'en croches pointées ou en doubles croches.
Course preview
This lesson is part of the course Apprends l'improvisation au violon avec Zach Brock & Snarky Puppy
Watch a preview of the full course below.
Lesson transcript:
Exploring the Bow and Time Feel in Music
Let's talk about the bow and how it relates to time feel. I'm assuming that if you're watching this, you've spent considerable time using your bow to create the proper sound on your instrument or to achieve a nice tone.
In more advanced discussions, we'll delve into various sounds and ways to purposely play incorrectly to create effects. For instance, you can create electronic effects on your string instrument with no electronics.
For now, let's focus on some alternate bowings that will help you improve your time feel.
Basic Bowing Techniques
Of course, we've got our basic detach? (separate bows). Many of you are probably also accustomed to:
- Slurring every four notes
- Slurring every two notes
Before we explore odd groupings (a whole other topic), I want to discuss slurring two notes, but without slurring from the first beat. We are specifically addressing 4/4 time right now. Later, we'll explore different time signatures and related concepts.
Slurring Practice
Let's get the trusty metronome going. I'm going to play eighth notes, slurring every two.
Exercise:
- Put the slur on the second to third notes.
- Then, place the slur on the fourth to the first notes.
So right now, we're slurring 1 to 2 and 3 to 4. In terms of the eighth notes, I want you to slur like this:
- Separate
- Slur
- Slur
- Slur
- Slur
It should sound like this:
"S-L-U-R!"
There's something about that which already feels a little groovier.
Creating Rhythmic Impulse
Now, let's say I emphasize the accents more when I change the bow. I achieve this with a little pronation in my bow hand, giving it that extra impulse.
As classical players, we're often trained to disguise the shift and the bow change. However, here, I'm actually using the bow change to add rhythm to my line.
Classical Versus Jazz Styles
For some of you who have experimented with jazz, you know the dreaded sound of a classical player trying to adapt to a jazzy time feel. Oftentimes, this is a result of poorly written pop scores where a swing rhythm is represented as a dotted eighth note followed by a sixteenth note.
This creates a very stilted sound, unless you're aiming for that old-time recording quality.
For those who are struggling with herky-jerky time, consider this:
- Just think straight eighth notes at first.
- Don't worry about trying to make it swing or groove.
- Change your bow on the offbeat.
Approaching Swing Rhythm
If we want to get into a more technical discussion about how to approach swing, I suggest that classical players think about groove or swing more in terms of triplets rather than dotted eighths and sixteenths.
This idea stems from the fact that within every duple, there is a triple, and within every triple, there is also a duple. This concept runs through the time feel of great improvisers, regardless of style.
To enhance your swing concept, consider:
- Treating two triplets tied together.
- Connecting the next triplet to the following one.
However, if that still doesn't sound right to you, don't worry; there are many resources available to explore this further.
Alternate Bowing Variations
We can practice every other note bowing. For example, consider groups of:
- Threes: 1, 2, 3.
- Fives: 1, 2, 3, 4, 5.
These variations, as seen in the Galamian bowing techniques, are highly useful for improvisation.
Randomizing Bowing Patterns
I encourage you to revisit some of the modes and scales we've worked on and alter your bowing techniques:
- Instead of maintaining a consistent pattern, try randomizing the direction.
- For instance, you could go up, up, up, down, down, up.
When practicing bowings, make sure not to always start with a down bow. It's beneficial to alternate and practice starting with an up bow.
Preparing for the Unexpected
As you can see, preparing for improvisation means preparing for the unexpected. Think of it like a football player doing tire exercises:
- You aren't just running in a straight line.
- You must be able to move laterally and diagonally because you don't know what's coming next, whether it's from a bandmate or your own imagination.
As you engage with each exercise we discuss, always think about practicing the opposite. If there's a certain direction you typically follow, try reversing it!
About the instructor

Salué comme « le violoniste improvisateur prééminent de sa génération », Zach Brock est un violoniste et compositeur dont la musique puise dans les traditions du jazz, de la musique classique, des musiques du monde et de la musique populaire. Zach a reçu son premier Grammy Award en 2017 pour son travail sur l'album Culcha Vulcha de Snarky Puppy. Sa reconnaissance en tant que leader s'est accrue grâce à des concerts dans des salles comme le Carnegie Hall et des festivals tels que « Tudo e Jazz » au Brésil, tandis que sa réputation de sideman s'est répandue à travers ses collaborations avec le légendaire bassiste Stanley Clarke, le super-groupe instrumental contemporain Snarky Puppy et les maîtres du jazz Phil Markowitz et Dave Liebman. Zach a réalisé dix enregistrements en tant que leader ou co-leader et est le premier violoniste à enregistrer pour le vénérable label de jazz néerlandais Criss Cross. Il a également représenté le Département d'État américain en tant qu'ambassadeur musical aux îles Salomon, s'est produit comme soliste invité pour les bandes originales de deux longs métrages du Festival de Sundance et est actuellement artiste en résidence à la Temple University de Philadelphie. Dans son cours, tu apprendras à improviser au violon directement à la source : comment Zach aborde la mélodie, le rythme et l'harmonie, et comment commencer à trouver ta propre voix comme il l'a fait aux côtés de Snarky Puppy et au-delà. read more




