Teaching piano to millions worldwide

1.8M YouTube subscribers

*All memberships will be billed automatically on a recurring basis until canceled. If eligible for a free trial, cancel before the trial ends to avoid being charged. Trial only valid for new paid subscribers.

© 2026 HD Piano LLC|Help|Terms|Privacy||v2.13.1

We use cookies to run HDpiano, understand how lessons are used, and measure our marketing. You can opt out at any time.

Weak

Your instructor: Niji

MEDIUM

MEDIUM

Current Section: Chorus 1

Key: FBPM: 123

Learn this full song and 1,500+ more

Learn all parts of every song

Watch whole song performances

Access hundreds of cheatsheets

Get full instant access.

4 Tutorials + Whole Song Performance

Full Performance

Loading cheatsheet...

Play AJR's "Weak" on Piano Without Sheet Music

Feeling a little "Weak" when it comes to playing the piano? Don't be! Dive into learning AJR's incredibly catchy hit, "Weak," with this engaging medium-difficulty piano lesson. With HDpiano's unique visual learning method, you'll be playing this pop anthem without ever needing to read a single note of sheet music. It's all about watching and playing along as the notes appear!...

Learn These Songs Next

Hampstead

Ariana Grande

Golden

KPop Demon Hunters OST

Photograph

Ringo Starr

Messy

ROSÉ

Explore All Songs

Frequently Asked Questions

Everything you need to know about learning Weak on piano

4 Tutorials + Whole Song Performance

Full Performance

Learn These Songs Next

Hampstead

Ariana Grande

Golden

KPop Demon Hunters OST

Photograph

Ringo Starr

Messy

ROSÉ

Explore All Songs