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 — Visual Piano Sheet Music

5 people have learned this song

"I Need To Know" in visual bar notation — see every note as a colored bar on the staff. Easier to read than traditional sheet music. Scrolls automatically as you play. 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

Why does "I Need To Know" show as colored bars instead of notation?
Bar Notation replaces traditional noteheads with colored horizontal bars on a simplified staff — each bar's vertical position is the pitch and its length is the duration. Much easier to read than classic sheet music while still showing the full arrangement of "I Need To Know".
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 this real sheet music for "I Need To Know"?
It's a simplified visual notation using colored bars instead of traditional notes. Each bar's vertical position shows the pitch and its length shows duration — much easier to read for beginners while still showing the complete arrangement of "I Need To Know".
Can I see all the notes in "I Need To Know"?
Yes! The Bar Sheet shows every note in the arrangement as a colored bar. The sheet scrolls automatically during playback, or you can scroll manually to study any section. The song is in the key of E at 120 BPM.

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