The Team
Craft + Engineering
Yohann Abbou
Founder & CEO — Guitarist, Producer, Educator, Sound Engineer
30+ years of experience
Profile
Musician-led founder who built Guitar Social Club from stage to product. Turns songs into structured learning paths powered by AI—designed for real players, not just users.
Strengths
- 30+ years as a professional guitarist (stage & studio)
- 4,500+ pedagogy videos produced; 200-song catalog
- Curriculum design & learning science; UX for practice
- Product vision, editorial quality, brand & community
Selected Background
- Producer & coach — Paris studio network (FFWL)
- State diploma in music education (FNEIJMA / Le CIM)
- Master’s in Musicology — thesis on intention in jazz & improvisation (Aix-Marseille)
Gilles Guillemain
Co-founder & CFO — Finance, Operations & Partnerships
Profile
Former GM and program director (IBM, HR Access, HR Path). Scales finance, operations and B2B partnerships with clear governance and KPI discipline.
Strengths
- P&L ownership (up to €15M revenue / 120 FTE)
- Program & vendor management, contracting
- Financial modeling, unit economics, ROI tracking
- Enterprise deals, compliance, risk management
Selected Background
- Managing Director — HR Path (two subsidiaries)
- R&D Program Director (HRIS) — HR Access
- Project Manager — IBM (large information systems)
- Engineering — École Centrale de Lyon (Acoustics/Signal)