I Need To Know

by Tom Petty And The Heartbreakers
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Lyrics

Well, the (D)talk on the street says you (D)might go for so lo.

A good friend of mine den it’s saw you leav in’ by your (Dsus)back door.

I need to (E)know.

(I need to know.) I need to (D)know.

(I need to know.) If you (C)think you’re gon na leave, then you (D)bet ter say so.

I need to (E)know.

(I need to know.) I need to (D)know.

(I need to know.) ’Cause I (C)don’t know how long

(Dsus)I can hold (D)on.

If you’re (C)mak in’ me wait,

if you’re (Dsus)lead in’ (D)me on,

I need to (E)know.

(I need to know.)

I need to (E)know.

(I need to know.)

(D)Who would a thought that you’d (D)might fall for his line.

A All of a sud den it’s saw me leav in’ on the (Dsus)out side.

I need to (E)know.

(I need to know.) I need to (D)know.

(I need to know.) If you (C)think you’re gon na leave, then you (D)bet ter say so.

I need to (E)know.

(I need to know.) I need to (D)know.

(I need to know.) ’Cause I (C)don’t know how long

(Dsus)I can hold (D)on.

If you’re (C)mak in’ me wait,

if you’re (Dsus)lead in’ (D)me on,

I need to (E)know.

(I need to know.)

I need to (E)know.

(I need to know.)

I need to (E)know.

I need to (E)know.

I need to (E)know.

I Need To Know — Simple Sheet Music

5 people have learned this song

"I Need To Know" in simplified sheet music format — the bridge between beginner modes and real sheet music. Color-coded notes with lyrics scrolling horizontally. Perfect for learning to read music. Key of E, 120 BPM.

Tip: Use the speed control to practice at 70% tempo first. Focus on tricky chord transitions before attempting the full arrangement.

About “I Need To Know

How does Simplified Piano Arrangement differ from full sheet music for "I Need To Know"?
Simplified Arrangement keeps the melody and chords on a simplified staff with lyrics, color-coded for easy recognition. It's a learner-bridge between Beginner mode and the classic engraved Sheet Music — same song, less visual density.
What key is "I Need To Know" by Tom Petty And The Heartbreakers played in?
I Need To Know is arranged in the key of E on Super Simple Piano. You can transpose to any other key live in the player.
What's the tempo (BPM) of "I Need To Know"?
The arrangement plays at 120 BPM. Use the speed control (10-200%) to practice slower or play faster.
Is "I Need To Know" easy to play on piano?
This is a medium-difficulty arrangement. Most players can learn it within a few practice sessions using the speed control.
Can I download sheet music for "I Need To Know"?
Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
Who composed "I Need To Know"?
"I Need To Know" was originally performed by Tom Petty And The Heartbreakers. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
What chords are used in "I Need To Know"?
This arrangement uses 7 chords: A7, B7, C, D, Dsus4, E, E7.
What other songs by Tom Petty And The Heartbreakers can I play here?
Try "HERE COMES MY GIRL", "DON'T DO ME LIKE THAT", "REFUGEE". All are in our player with color-coded notes; pick the one matching your level.
Is Simple Sheet good for learning to read sheet music?
Yes! Simple Sheet bridges the gap between beginner color-coded modes and traditional notation. Notes are displayed on a simplified staff with colors, lyrics, and chords — helping you build music reading skills gradually while still enjoying "I Need To Know". Key of E, 120 BPM.
What's the difference between Simple Sheet and Lead Sheet?
Simple Sheet shows a more streamlined, horizontally scrolling view with color-coded notes on a staff and lyrics below — like a simplified version of real sheet music. Lead Sheet shows melody with chord symbols above and full lyrics. Simple Sheet is the next step toward reading traditional notation.

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