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 — Piano Lead Sheet

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"I Need To Know" lead sheet with chords, melody, and lyrics. Play the melody while following chord symbols above. Perfect for sing-along or accompaniment. 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”

Where are the chord symbols for "I Need To Know" displayed?
Lead Sheet shows chord symbols (like Am, G7, C) above the melody line with lyrics below. Every chord change highlights in real time as the song plays, so you can play the melody with the right hand and follow chord shapes with the left. "I Need To Know" is in E.
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.
Does "I Need To Know" have chords and lyrics?
Yes! The Lead Sheet shows the melody with chord symbols (like Am, G, C) and full lyrics. Perfect for singing along or playing with a band. "I Need To Know" is in the key of E at 120 BPM.
What chords are in "I Need To Know"?
Open the Lead Sheet to see all chord symbols displayed above the melody line. The song is in the key of E, so you'll find chords common to that key. Each chord highlights in real time as the song plays.

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