In the world of French rock, certain instruments have made history. One of them accompanied a legendary artist for 10 years, creating unforgettable moments on stage. Greg Zlap, a talented harmonica player, shared this adventure with passion.
Their collaboration spanned 282 concerts, during which the music took on a unique dimension. Every note told a story, blending traditional blues with rock energy. That legacy still resonates today.
The album “Rock it” symbolizes this artistic partnership. It brings a decade of daring creations to a close. Among the iconic songs, the solo on “Gabriel” remains etched in people’s memories.
It all began with a gift received at the age of 14. This simple object would become the thread running through an exceptional career. The encounter with an iconic rocker would give rise to unprecedented harmonies.
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Introducing the harmonica into his repertoire
The instrument, traditionally associated with the blues, found its place in rock. Greg Zlap created a daring fusion, adapting Little Walter’s techniques to electric melodies.
The spark came from a gift received at the age of 14. His uncle gave him a harmonica in Warsaw, planting the seed of a passion. Jean-Jacques Milteau, a key mentor, later refined his style.
“You sing with the harmonica.”
Greg Zlap, the man behind the instrument
He arrived in France without any connections and trained by listening to the great masters. His journey reflects rare determination:
- Major influences: Little Walter and American blues musicians.
- Technique: circular breathing and improvisation.
- A pivotal meeting with Milteau in 1998.
On stage, his playing quickly became inseparable from the music’s rock energy. It is a story that began with a simple object and ended in legend.
Greg Zlap and Johnny Hallyday: a legendary collaboration
A simple music demo changed the destiny of two artists. In 2007, Greg Zlap sent a recording to the French rock icon. A few days later, the long-awaited call came: Johnny wanted to meet him.

Their first meeting and instant musical connection
The recording studio became the setting for a rare chemistry. From the very first notes, Johnny recognized Greg’s raw talent. Marine Band in hand, the harmonica player improvised an electrifying blues.
What did they have in common? A visceral love of roots blues. “It was like speaking the same language,” Greg would later say. The artistic freedom Johnny gave him sealed their bond.
“Greg brought a new soul to my music.”
282 concerts in 10 years: a human adventure
For nearly a decade, they set stages alight together. From Paris to Montreal, every concert told a unique story. Greg describes those moments as “an energy transfusion.”
Their method? Improvisation. Johnny let Greg express himself freely, creating original solos night after night. That trust transformed their relationship into a friendship that went far beyond music.
For Greg, this period shaped his artistic life. “Johnny taught me to give everything on stage,” he admits. It is a legacy that still resonates in his playing today.
The harmonica, the signature sound of Johnny’s hits
The distinctive sound of one instrument redefined French rock classics. Somewhere between melancholy and power, this addition created a unique acoustic identity. Fans instantly recognize those vibrant notes.
“Gabriel”: the legendary solo
One key moment from the Tour 66 concert remains etched in people’s memories. Greg Zlap delivers a chromatic improvisation that combines minor scales with expressive bends. This passage, originally absent from the studio version, became a ritual.
“That solo is like a second chorus. It carries the emotion of the lyrics.”
How the harmonica transformed these songs
The arrangements of existing songs gained greater depth. The instrument acts as a countermelody, responding to the gravelly voice. Blues du Pénitencier is a striking example: the rock version incorporates riffs inspired by Chicago blues.
| Song | Before | After |
|---|---|---|
| Gabriel | Piano-dominated melody | Harmonica/vocal dialogue |
| Blues du Pénitencier | Electric-guitar arrangement | Chromatic bridge + harmonica |
| Quelque chose de Tennessee | Acoustic version | Diatonic-harmonica introduction |
To understand these techniques, explore this detailed analysis. Contemporary covers, such as a young artist’s rendition of Jalouse, still draw inspiration from them.
Technique and passion: Greg Zlap’s secrets
An arsenal of 40 harmonicas reflects an obsessive quest for sound. Each instrument corresponds to a specific key and is selected with the care of a sommelier choosing a fine vintage.

40 harmonicas for the perfect sound
The Hohner brand dominates his collection. Greg Zlap compares his selection ritual to lighting a cigar:
- Diatonic models for blues scales
- Controlled humidity to prevent oxidation
- Systematic replacement after 3 concerts
- Overblow technique inherited from Little Walter
On stage, this meticulous preparation enables fluid improvisation. Instrument maintenance becomes a sacred ritual between performances.
The influence of American blues musicians
The Chicago blues style permeates every note. Greg Zlap blends these roots with the energy of French rock, creating a unique signature.
His major influences:
- Little Walter for expressive bends
- Sonny Boy Williamson II for phrasing
- James Cotton for stamina on stage
“The blues is a living language. Johnny taught me to speak it with a French accent.”
This approach even affects his health. Breathing exercises strengthen his lung capacity, which is essential for long tours.
Today, he travels across 15 French departments, sharing this musical legacy. His masterclasses offer a behind-the-scenes look at this demanding discipline.
The harmonica’s legacy after Johnny
One chapter ends, but the melody continues to resonate. The mark left on French music transcends time. Tributes continue to multiply, led by those who shared this unique story.

Greg Zlap’s recent tributes
The “Le Blues du Pénitencier” video captures a moment of pure emotion. Filmed in black and white, it blends archival footage with live performances. In it, Greg pays tribute to his friend with rare intensity.
His 2022 tour of France and Switzerland left a lasting impression. Through March 11, every concert included a special medley. Fans were able to rediscover classics in a new light.
The album “Rock it”: coming full circle
This sixth album, produced with Vladimir Cosma, symbolizes both an end and a new beginning. The instrumental tracks return to the roots of the blues while incorporating subtle nods to the past.
The live recording of the anniversary concert remains etched in people’s memories. “It was like bringing 10 years of friendship back to life,” Greg said in an interview.
| Tributes | Format | Cultural impact |
|---|---|---|
| “Le Blues du Pénitencier” video | Official video | 2 million views (YouTube) |
| 2022 tour | 15 dates | Sold-out venues |
| “Rock it” album | Digital platforms | iTunes Blues Top 10 |
Passing this knowledge on to young musicians has now become a priority. Masterclasses held at conservatories are keeping this legacy alive. Specialist media have praised this educational initiative.
Conclusion: the harmonica, an enduring spark
A musical story that transcends generations continues to resonate. Modest yet powerful, the harmonica has left its mark on French-language rock culture. Its notes still echo in people’s memories.
Greg Zlap sums up this legacy: “The harmonica remains my weapon against the blues.” His duets with Johnny Hallyday, totaling 500,000 views on YouTube, capture unique moments.
For those wishing to discover this art, masterclasses are held in 20 French departments. An official playlist (opens in a new window) lets listeners relive this adventure. Music, like a life, is passed on.

