

From Idea to Song in Four Steps
Start anywhere on the wheel. Whether you're matching a singer's range or finding your comfort zone, Chordii shows you every possibility at a glance.
Watch as Chordii reveals the perfect chord relationships for your key. No more guessing which chords work together—it's all right there in front of you.
Flip Chordii over to discover mood-based progressions that spark creativity. From melancholic to uplifting, find the perfect emotional foundation for your song.
With theory simplified, your creativity can flow freely. No screens, no apps, no distractions—just you and your music, exactly as it should be.

Questions? We've got you covered.
Chordii brings music theory to life — no screens, no distractions. Spin to your key, and instantly see the chords and progressions you can play. It's simple, fast, and made to spark creativity. For more, check out our instruction page!
No — and that's the beauty of it. Chordii unlocks the power of music theory in a way that feels natural, not technical, helping you create with confidence at any stage.
Music theory helps you understand how notes and chords work together, like learning the rules of a new language. But it can get pretty complicated — there are a lot of rules about which notes and chords go together, and what emotions they create. Even musicians who study this stuff for years can get lost in the details.
That’s where this tool comes in. Think of it as your cheat sheet for music. You just spin the wheel to pick a key, and it shows you:
- The notes in that key (like the ingredients for your song).
- The chords that work with those notes, and whether they’re happy, sad, or tense.
- How everything fits together, so you can make melodies and harmonies easily.
- The "relative minor" key, which helps you change the mood without changing the notes.
- Plus, there are 15 chord progressions with moods already described, so you can try them out and spark new song ideas.
This tool takes the guesswork out of music theory so you can focus on what matters most — making music! Whether you’re just getting started or need fresh ideas, it’s like having a music coach right in your hands.
Chordii is crafted from premium, 24pt cardstock with a soft-touch finish that's built to last. Its lightweight yet sturdy construction makes it perfect for taking to writing sessions, rehearsals, or lessons.
Definitely! Discounts kick in automatically at checkout when you order 5, 10, 20, or 30+ items. No special codes needed — just add to your cart and save!
We ship anywhere in the United States via USPS. For international orders, we use trusted carriers like UPS and DHL to ensure fast and reliable delivery.
Shipping times vary by destination, but you'll see an estimated delivery date when you choose your shipping options at checkout. Once your order is placed, we’ll get to work and have it shipped out within 1-2 business days!
We offer a 30-day satisfaction guarantee. If you're not completely satisfied with your Chordii, return it in its original condition for a full refund, minus shipping costs.
Chordii requires minimal maintenance. Simply keep it clean and dry, and avoid exposing it to extreme temperatures or direct sunlight for prolonged periods.
"Chordii" combines simplicity and musical relevance with a modern twist. The name highlights the focus on chords, and the subtle nod to the Roman numeral "ii" adds depth for advanced users. For Andrew, the founder, the number two holds personal meaning: it represents his second chance after overcoming stage 2 cancer, having 2 kids, and creating Chordii as his second shot at his "Theo" design, which he sold to cover medical bills.
Yes, we do! If you’re interested in becoming an affiliate, simply shoot us an email (andrew@chordii.com) and we’ll get you set up. Our mission is to help others grow, and we’d love to support you in making money doing what you’re passionate about. We're always excited to partner with like-minded individuals!
Contact us at andrew@chordii.com and we'll get back to you within 24 hours.