I am looking for free (or very cheap) sheet music for the piano.  
There are many sites on the 'Net, but many seem to offer few
selections or force you to pay a price before gaining access (paying a
price is fine if I know they are a quality site with an extensive
database, but I don't want to pay upfront without knowing which are
the reputable sites).    Background: I am an adult re-teaching myself
piano after 20 years without playing.   Thus, bonus info from the
researcher (though not required) would be sites that offer great
how-to and "teach yourself" guides.  Also, I am starting with *no*
sheet music, so swap sites won't work well in the beginning.

Hi micolita,

Thank you for an interesting quesiton.


FREE PIANO MUSIC!
http://www.pitt.edu/~deben/freebies.html#First%20Pieces

Download your free piano sheet music now!
Just click and print! No fees, no memberships, no passwords.

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Piano sheet music for intermediate piano player - lists of sheet music
for intermediate player.
http://www.playpianotips.com/freesheetmusic/freesheetmusic.html

Click on Sheet Music

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http://www.thepianopages.com/pianosheetmusic.html

And here is our collection of free piano sheet music; click a song
title to print the song out. The music ranges from folk tunes to
Chopin to Stephen Foster, and is listed in alphabetical order by
title. It also ranges in level of difficulty, so no matter how long
you've been playing, you should be able to find the appropriate sheet
music here.

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You'll find a lot of free sheet music at Classical Piano Free Downloads
http://www.sheetmusic1.com/new.great.music.html

Note: References to "Registered Users" that you will see on the "view"
pages below should be disregarded. We no longer charge anything for
downloads, and no one needs to register!!

Click on the various sheet music - for ex., the first one is:

View J.S. Bach Minuet in D Minor

Download pdf file to view and print 

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Piano Sheet Music - Free from Pianostreet.com

To start printing out sheet music from the Piano Street collection of
piano sheet music, you must be a member. Membership is totally free
and gives instant access to all our downloadable content.
Please sign up here! 
http://www.pianostreet.com/amember/signup.php

We currently have about 2500 pages of free classical piano sheet music
in pdf format. You must be logged in as a free member to download all
of the files listed on this page.
http://www.pianostreet.com/amember/login.php


Everything from Bach to Tchaikowsky!

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http://www.anyscore.com/free.asp

You need the free Acrobat Reader 4.0 or higher. Install now.
Right-click the title to save the file to your hard drive.

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Free Sheet Music
http://www.topbanana.mcmail.com/sheetmusic.html#tns

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How to Play New Age Music - Free Piano Lesson Online
http://www.yokewong.net/NewAgeMusic.html

http://www.yokewong.net/sightreading.html

http://www.yokewong.net/Improvisation1.html

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Piano Lessons Online
Offers free online piano lessons, from beginning to playing with both
hands. Includes course information, what to expect, support material,
lessons, ...

http://learnpianoonline.com/main/login.html

Not a member?
Learn from 64 pages of
Free Lessons!

Click on the links:
Level 1- 11 Pages FREE! 
Level 2- 10 Pages FREE! 
Level 3- 11 Pages FREE! 
Level 4- 10 Pages FREE! 
Level 5- 11 Pages FREE! 
Level 6- 11 Pages FREE! 

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Piano/Keyboard/Organ Lessons
http://www.geocities.com/Athens/Marble/9607/keyboard.htm

Attention: The contents of these lessons are overlapping. It is
advisable to go through ALL the lessons to ensure complete learning.

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Virtual Piano Chords
http://www.geocities.com/Athens/Marble/9607/magicpiano.html

On-screen Keyboard and On-screen Note Locator 
http://www.geocities.com/Athens/Marble/9607/magicpiano.html

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PIANO LESSONS FOR ABSOLUTE BEGINNERS:  DAY 1 BEGINNERS
http://users.wireweb.net/green/pianolessons.htm

To play these songs simply look at the finger diagrams and understand
that each finger has a number.  Then just play the songs by means of
the finger numbers


Continue scrolling to PIANO LESSONS FOR BEGINNERS:  Levels 1-2-3

***Note***
At the bottom of many pages, you'll see text with a link to download
sheet music.  Some of the text appears as:

"Now, it's time for you to download the music so that you can practice
Walking Bass Pattern 117. CLICK ON THE ADOBE ACROBAT FILE HERE:

Or 
"Now click onto this PDF link to get the music notation of the song."

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Play the piano or keyboard with only one lesson. The definitive, sure
to work tutorial, for learning to play the piano. If this lesson is
taken to heart, you will not need any other lessons.
http://www.lofthouse.com/music/piano/

See Fallacy and Truth list...

Then click at the bottom of the page - "Reveal the secret". 
Go to the bottom of the page and you'll see Next - click for more
information. There are 4 pages total and one page has a wonderful
Tutorial.
  
=========

Best regards,
tlspiegel

Great job.  Thanks!

Hi micolita,

Thank you for the 5 star rating and nice comment.  :)

Best regards,
tlspiegel aka one who studied classical piano from age 4 - 18 and
hasn't played a note in 44 years.  :)