Best Guitar Strings for Bluegrass (2026): 5 Picks Compared
Updated Nov 11, 2026 · By 
Jonah Mercer · Ranked from listed specifications · How we rank
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D'Addario leads this list for bluegrass: the EJ19 is a 12-56 phosphor bronze set with a precision-wound wrap over a hexagonal steel core.
The picks at a glance
Which one should you buy?
- Bluegrass players who want a 12-56 phosphor bronze set: D'Addario EJ19 Phosphor Bronze Acoustic Guitar Strings See pick 1
- Players who want tuning stability for longer sessions: Stringjoy 12-56 Bluegrass Medium Naturals Acoustic Guitar See pick 2
- Players who want a .012-.056 bluegrass gauge set: DR Strings Rare Acoustic Guitar Strings See pick 3
- Players who want a 3-pack bundle of 12-56 strings: John Pearse Acoustic Strings Phosphor Bronze Bluegrass See pick 4More picks: Best 12 String Guitar Strings
- Players who want the full 12-16-24W-36-46-56 gauge list: Curt Mangan Fusion Matched Phosphor Bronze Bluegrass See pick 5
Want the full range? Best Guitar Strings ranks the top guitar strings for every buyer, or browse all 46 guides.
The 5 picks, ranked
1Best Overall
D'Addario EJ19 Phosphor Bronze Acoustic Guitar Strings
- Sets in pack: 56
- Material: Phosphor Bronze
Best Overall as the 12-56 bluegrass set in phosphor bronze with a precision-wound wrap over a hexagonal steel core.
Who it suits
- Bluegrass players who want a 12-56 phosphor bronze set
- Players who want strings made in the USA
Skip it if
- You want a lighter gauge than 12-56
- You want more than one set in a pack
The set is phosphor bronze wrap wire wound over a hexagonal high-carbon steel core, precision wound and corrosion-resistant. The set offers warm, bright, balanced tone with reliable intonation and a durable feel. The strings are made in the USA, and the recyclable VCI bag carries a code to register for Players Circle points.
2Runner-Up
Stringjoy 12-56 Bluegrass Medium Naturals Acoustic Guitar
- Sets in pack: 1
- Material: Phosphor Bronze
- Gauge: Medium
- 30-day warranty stated
Runner-Up as a 12-56 bluegrass medium set in phosphor bronze with a hex core and a 30-day warranty.
Who it suits
- Players who want tuning stability for longer sessions
- Players who want a 30-day warranty
Skip it if
- You want several sets in one bundle
- You want a round core string set
The set is a 6-string phosphor bronze set in 12-56 bluegrass medium gauge with a hex core. Tuning stability holds for longer sessions, with clarity and resonance and a natural feel from the phosphor bronze wrap. The strings are crafted in Nashville, Tennessee, and carry a 30-day manufacturer warranty.
3Also Great
DR Strings Rare Acoustic Guitar Strings
- Sets in pack not stated in the listing
- Material: Phosphor Bronze
Also Great as a .012-.056 bluegrass gauge set in phosphor bronze.
Who it suits
- Players who want a .012-.056 bluegrass gauge set
- Bluegrass players who want a phosphor bronze set
Skip it if
- You want several sets in one bundle
- You want the full gauge list for each string
The set is a .012-.056 bluegrass gauge set in phosphor bronze, in a Bronze color. It is warrantied against manufacturing defects. The gauge matches the 12-56 bluegrass sets here.
4Also Great
John Pearse Acoustic Strings Phosphor Bronze Bluegrass
- Sets in pack: 3
- Material: Phosphor Bronze
Also Great as a 3-pack bundle of 12-56 phosphor bronze bluegrass strings.
Who it suits
- Players who want a 3-pack bundle of 12-56 strings
- Bluegrass players who want phosphor bronze strings
Skip it if
- You want a single set rather than a bundle
- You want the full gauge list for each string
The bundle holds 3 sets of 12-56 phosphor bronze bluegrass strings in a Bronze color. The part number is 650-3pack, and the model is 650.
5Also Great
Curt Mangan Fusion Matched Phosphor Bronze Bluegrass
- Sets in pack not stated in the listing
- Material: Phosphor Bronze
Also Great as a 12-56 phosphor bronze set with gauges 12-16-24W-36-46-56 and made in the USA.
Who it suits
- Players who want the full 12-16-24W-36-46-56 gauge list
- Players who want strings made in the USA
Skip it if
- You want several sets in one bundle
- You want gauges lighter than 12-56
The set is a 12-56 phosphor bronze bluegrass set with gauges 12-16-24W-36-46-56. The strings are made in the USA, and the listing gives a Bronze color. The model is 31256.
Side by side
| Product | Coated strings | Sets in pack | Material | Gauge | Weight | Warranty |
|---|---|---|---|---|---|---|
| D'Addario EJ19 Phosphor Bronze Acoustic Guitar Strings | Not stated | 56 | Phosphor Bronze | Not stated | Not stated | Not stated |
| Stringjoy 12-56 Bluegrass Medium Naturals Acoustic Guitar | Not stated | 1 | Phosphor Bronze | Medium | Not stated | 30-day |
| DR Strings Rare Acoustic Guitar Strings | Not stated | Not stated | Phosphor Bronze | Not stated | Not stated | Not stated |
| John Pearse Acoustic Strings Phosphor Bronze Bluegrass | Not stated | 3 | Phosphor Bronze | Not stated | Not stated | Not stated |
| Curt Mangan Fusion Matched Phosphor Bronze Bluegrass | Not stated | Not stated | Phosphor Bronze | Not stated | Not stated | Not stated |
How we ranked these guitar strings
Every pick ranks in Amazon's best-seller list for its category and has a listing with real specifications. The order mixes two things: how each model compares on the specs below (higher share of the best value in this group scores more), and how widely it is bought. The spec score runs from 9.0 to 9.8 and only compares these picks with each other. A spec the listing does not state is left out and the other specs are re-weighted; a listing with fewer than 2 stated specs is scored at half. We do not test gear in person. Full method.
- Coated strings weight 2
- Sets in pack weight 1
Buying advice: guitar strings for bluegrass
Match the gauge to bluegrass
Bluegrass sets here run 12-56, and the Curt Mangan set spells out each gauge as 12-16-24W-36-46-56, with the third string wound and marked W. The D'Addario, Stringjoy, DR, John Pearse and Curt Mangan sets are all phosphor bronze in 12-56 bluegrass gauge. Compare the gauge list and the pack size, since those are the specs that differ across these sets.
Phosphor bronze is the shared material
All five sets use phosphor bronze wrap wire. The D'Addario set winds phosphor bronze over a hexagonal high-carbon steel core, and the Stringjoy set uses a hex core. A phosphor bronze wrap is the material the listings here give for bluegrass, and the core shape is the detail that differs: hexagonal on the D'Addario and Stringjoy sets. If the core matters to you, the D'Addario and Stringjoy sets are the ones that name it.
Check pack size and warranty
Pack size differs across these sets: the John Pearse bundle holds 3 sets, the Stringjoy set is a 1-pack, and the D'Addario set is a single set. The Stringjoy set carries a 30-day manufacturer warranty, and the DR set is warrantied against manufacturing defects. The D'Addario set comes with a code on the recyclable VCI bag to register for Players Circle points. If you change strings, the 3-pack bundle keeps spares on hand.
Frequently asked questions
What gauge are bluegrass guitar strings?
The sets here are 12-56, and the Curt Mangan set spells out each gauge as 12-16-24W-36-46-56. The D'Addario, Stringjoy, DR and John Pearse sets also give 12-56 bluegrass gauge.
Are bluegrass strings phosphor bronze?
All five sets here are phosphor bronze. The D'Addario set winds phosphor bronze over a hexagonal high-carbon steel core, and the Stringjoy set uses a hex core.
Do these strings come in multi-packs?
The John Pearse bundle holds 3 sets of 12-56 strings. The Stringjoy set is a 1-pack, and the D'Addario set is a single set.
Which strings carry a warranty?
The Stringjoy set carries a 30-day manufacturer warranty, and the DR set is warrantied against manufacturing defects.
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Specifications and availability come from each Amazon listing on Nov 11, 2026 and can change. Check the listing before you buy.