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Circle of 5ths old max 2XL

Certified Theory Nerd
Sale price$29.99
For key-signature masters, theory lovers, and everyone who sees the circle of fifths in their dreams. Soft, comfy 100% ring-spun cotton with music's most famous diagram. Every key, one perfect circle.
  • Everyday ComfortEveryday Comfort
  • Music Theory ApprovedMusic Theory Approved
  • Reliable QualityReliable Quality
Color: Black
Size: S
Shirt Size Chart
Refer to images for visual sizing information.

LENGTH WIDTH CHEST
XS (inches) 27 16 31-34
S (inches) 28 18 34-37
M (inches) 29 20 38-41
L (inches) 30 22 42-45
XL (inches) 31 24 46-49
2XL (inches) 32 26 50-53
3XL (inches) 33 28 54-57
4XL (inches) 34 30 58-61
5XL (inches) 35 31 62-65

Shipped before the next verse

Ordered today, on the road within 48 hours.

Made by musicians

If it doesn't get a laugh at camp, it doesn't get printed.

Easy returns, no sad songs

7 days to send it back, no questions asked.

Modulate in comfort with this theory-nerd-certified Unisex Jersey T-Shirt featuring the "Circle of 5ths" design. Soft, lightweight combed ring-spun cotton pairs easily with jeans and stays comfortable through practice rooms, lessons, rehearsals, composition seminars, or a casual day out. This shirt isn't just a clothing item; it's twelve keys arranged in the most satisfying shape in music. Start at C, hop a fifth, and keep going until you land back where you began with a pocket full of sharps. Go the other way and collect flats. Chord progressions, key changes, and half the pop songs ever written all live somewhere on this wheel, which makes it the most useful thing you will wear all week. Great for gifting during holidays, birthdays, recitals, or the first day of theory class, this tee resonates with music theory lovers, teachers and students, songwriters, and anyone who appreciates both nerdy harmony humor and comfort in their everyday wear.

Product features

  • Made from 100% combed and ring-spun cotton for a soft, lightweight feel (Heather colors contain polyester).
  • Classic crew neckline with a ribbed collar that keeps its shape.
  • Side-seamed construction for a modern, flattering unisex fit.
  • Shoulder-to-shoulder taping for extra durability at the seams.
  • Pre-shrunk fabric that holds its size and shape wash after wash.

Care instructions

  • Do not dryclean
  • Do not bleach
  • Tumble dry: low heat
  • Iron, steam or dry: low heat
  • Machine wash: cold (max 30C or 90F), with similar colors

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Fabric: 100% combed and ring-spun cotton (Heather colors contain polyester)

Fabric weight: 4.2 oz./yd.² (142 g/m²)

Fit: Unisex classic fit, true to size

Neckline: Crew neck with ribbed collar

Sleeve: Short sleeve

Construction: Side-seamed, shoulder-to-shoulder taping

Fabric care: Pre-shrunk, machine washable

Print: Fade-resistant, permanent design print

Sizes: S – 2XL

Colors: 15 color options available

Note: Lighter colors are slightly sheer and may appear see-through under certain lighting

Everything is made to order, so here's exactly what to expect.

Processing: 2–5 business days to print and pack. Longer during camp season and holidays; we'll email you if anything slips.

Rates: calculated at checkout based on where you are. No surprises.

Upgrades: faster options appear at checkout where they're available in your region.

Tracking: emailed the moment your order ships.

Delays: weather, holidays and customs are beyond us. We'd hand-deliver with a bow if we could. We'll keep you posted.

International orders: customs fees, duties and import taxes are the buyer's responsibility and aren't included in our prices.

Returns, exchanges and cancellations on non-custom items:

Contact us within 7 days of delivery to start a return, then send it back within 14 days.

Changed your mind? Cancel within 12 hours of ordering.

Return shipping is on you. Items need to come back unworn and in original condition — full refund minus original shipping.

Arrived damaged? Email photos within 7 days and we'll send a replacement. Keep the original.

Custom pieces can't be returned unless they arrive damaged or defective.

Built by musicians. Perfected in fifths.

Designed for the key-signature masters who modulate through all twelve keys before breakfast. Every tee blends premium comfort with a personality all its own: soft, effortless, and made to move with you.

Why We Chose This Shirt

  • Premium Bella+Canvas 3001
  • Soft, lightweight, broken-in feel
  • Unisex modern fit
  • Gets even softer with every wash

We chose the Bella+Canvas 3001 because it’s the kind of shirt people reach for first. Soft, lightweight, and comfortably broken-in from day one. Think of your favorite T-shirt that’s been washed and loved for years. If you’re looking for a thick, heavyweight tee, this probably isn’t it… and that’s exactly why we chose it.

VERIFIED CUSTOMER REVIEWS

Real musicians. Real opinions. Zero mercy.

★★★★★

Elena V. ✓ Verified purchase

Ordered a second one after my first got so much use in class. The diagram is printed clearly and the cotton is comfortable.

★★★★★

Jordan Blake ✓ Verified purchase

My band director dad wears this every Friday now. Says it is the most comfortable shirt in his closet and the students quiz him on it.

★★★★★

Natalie H. ✓ Verified purchase

Really like the design and the shirt is soft. It runs a bit slimmer than I am used to, so I would size up.

Fits like your favorite song sounds

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