Practice

Mandolin strings

Mandolins use 8 strings tuned in 4 unison pairs (courses): G3–G3, D4–D4, A4–A4, E5–E5 (same as violin, low to high). Each course is tuned to the same pitch, which creates the characteristic chorus-like shimmer that defines the mandolin sound.

Winding material is the first choice: phosphor bronze for warm, long-lasting brightness; 80/20 bronze for crisp attack; nickel for electric or jazz use; flatwound for smooth, dark tone. String ends, core wire, and gauge fine-tune from there.

Winding materials compared

Material Tone Lifespan Best for
Phosphor bronze Warm, rich, long-lasting brightness Good Bluegrass, folk, all-around
80/20 bronze (brass) Brighter, crisper attack Shorter — loses brightness faster Recording, bright tone when fresh
Nickel / nickel-plated steel Mellower, jazzier Good Electric mandolins, jazz, pickup use
Flatwound Smooth, dark, mellow Very long Jazz, classical mandolin
Monel Consistent tone over time Excellent — corrosion-resistant Players wanting long-lasting consistency

Tuning and courses

Mandolins use 8 strings tuned in 4 unison pairs (courses): G3–G3, D4–D4, A4–A4, E5–E5 — the same tuning as a violin, low to high. Each course is tuned to the same pitch, which creates the characteristic chorus-like shimmer. The paired strings vibrate together but with slight phase differences, producing a natural chorusing effect that is central to the mandolin’s identity.

String ends

  • Loop-end: the traditional mandolin string termination. A small loop at the ball end hooks over the tailpiece post. Most mandolin strings are loop-end by default.
  • Ball-end: less common, used on some tailpieces designed for ball-end strings. Easier to string for beginners.

Core wire

  • Round core: traditional construction. Slightly warmer, more complex tone. Strings feel a bit stiffer.
  • Hex core: modern standard. Wrapping grips the hexagonal core better, more consistent tension. Brighter, more focused tone.

Winding materials in detail

  • Phosphor bronze: the most popular mandolin string material. Warm, rich, long-lasting brightness. Good all-around choice for bluegrass and folk.
  • 80/20 bronze (brass): brighter, crisper attack than phosphor bronze. Loses brightness faster. Good for recording when fresh brightness is wanted.
  • Nickel / nickel-plated steel: used on some sets, especially for electric mandolins or players wanting a mellower, jazzier tone. More magnetic — better with pickups.
  • Flatwound: smooth, dark, mellow tone. No finger noise. Used in jazz and classical mandolin. Less common.
  • Monel: corrosion-resistant alloy used by some brands (e.g., D’Addario). Consistent tone over time.

Gauges

  • Light (0.010–0.034): lower tension, easier fretting, slightly less volume and projection.
  • Medium (0.011–0.040): the standard for most players. Balanced tension, good projection.
  • Heavy (0.012–0.041): higher tension, increased volume and projection, requires more fretting force. Bluegrass players often prefer medium to heavy for the chop and volume.

Coatings

Coated strings (Elixir, D’Addario XS) last longer but cost more. Slightly different feel under the fingers. They maintain brightness longer than uncoated strings, making them a good choice for players who dislike the sound of dead strings but don’t want to change frequently.