Daniel Friederich No. 504 "Experimentale", 1979

Daniel Friederich (1932–2020) is regarded as one of the most influential luthiers of the modern era, with his guitars in the hands of leading performers and collectors worldwide. This instrument, No. 504 from 1979, carries the rare “Experimental” designation on the label — a mark Friederich occasionally used when exploring design variations. 

During the 1970s, Friederich was refining the asymmetrical bracing concept that became one of his trademarks. In this example, the treble side features a diagonal brace, producing an enhanced clarity and sustain in the upper register while preserving the legendary depth and bloom of his basses. The experiments in this era led to today's most sought after Friederich guitars.

While clearly a guitar that has seen many years of devoted playing — with visible but honest wear throughout — it remains in remarkable structural condition. Two cracks have been professionally repaired, the bridge has been filed down slightly to achieve a lower action, and the guitar is otherwise original and well cared for. In fact, its played-in nature removes the hesitancy that sometimes comes with owning a pristine, museum-grade Friederich, inviting you to enjoy it as a living, breathing concert instrument.

The neck is notably thinner than on many Friederichs, with a flatter D-profile that makes for a comfortable and agile left-hand feel.

Key Features

• Top: Cedar

• Back & Sides: Indian Rosewood

• Scale Length: 650mm

• Nut Width: 52.5mm

• Bracing: Asymmetrical fan with diagonal treble-side brace

• Neck Profile: Slim D-shape, flatter back

• Condition: Plenty of honest playwear, two small professionally repaired cracks, excellent structural integrity

Sound & Playability

• Deep, resonant basses with remarkable sustain and bloom

• Clear, singing trebles that hold their own against the powerful low end

• Balanced voice across registers, with Friederich’s signature warmth and complexity

• Highly responsive dynamic range — equally rewarding for gentle, lyrical passages and assertive projection

• Comfortable, slightly thinner neck profile ideal for extended playing

Final Thoughts

This 1979 Daniel Friederich offers both the sonic magic and historical significance that make his instruments so sought after. The “Experimental” label adds intrigue for the collector, while the open, mature voice makes it a true performer’s guitar. With its balance of condition, playability, and tonal richness, it is a rare opportunity to own one of the most celebrated names in modern luthiery.

Located in Austin, TX. Worldwide shipping is available — please contact for an accurate quote.