How to Write a Good Piece of Music for Piano

Many people know how to read musical notation, less know how to write music and very few know exactly how exactly to get inspired and compose original, nice music.

Sit down at the piano. You wont get anywhere at all by sitting with a blank page in front of you.
Play around with chords or melodies, if you heard a piece or progression of chords that you liked play them by ear on the piano (or for those who cannot do that, look them up in a book or on the net).
Fiddle around until inspiration strikes (If at first you don’t succeed try, try again. Or if you don’t think that that will work, redefine success!)
Play around with your idea until it totally forms.
Write it down. This may be harder than you think, don’t rush.
Revise it like you would if you were writing an article.
Publish it or whatever you want to do with it.

Use pencil when first writing it
Play your piece for many people before you write it down. Don't distress if you cant come up with anything at first.

Things You'll Need
Yourself
A very good imagination
A piano
Blank sheet music
A sharpened pencil
Patience

How to Write Interesting Songs for Piano

If you search WikiHow, you will find plenty of pages related to the topic "How to write songs" and "How to write songs for piano". However, most of these simply tell you to put aurally pleasing chords and melody lines together, and to write the notes down on a stave. These tell you nothing about how to find your aurally pleasing chords, etc. That is the purpose of this page. (This page can work for any other instrument, but primarliy for the piano.)

First of all, a lot of guides (and for that matter, people) will tell you that in order to compose effectively, you need to have a rough knowledge of theory, i.e. scales, chords, musical notation, etc. This is not always the case. For example, some artist have been composing since they were young, and could not read musical notation until a much later age. As long as you have a good feel for the music, and know what do do with your hands, then the sky's the limit.
you might like not knowing anything about notes and scales, because when you noodle around with a guitar, there are no harmonic boundaries. you are free to experiment. Judge for yourself.

Decide whether you're going to begin with lyrics or begin with piano. most people like to begin with the lyrics because then you feel as if you know what kind of mood you want the music to have. But lots of people work the other way around, so choose yourself.

Think of something that has inspired/angered/elevated you. you might want to write about something that you feel passionately about, otherwise your lyrics will have very little impact.

Watch out for plagarizing, whether it's intentional or not. Plagarizing is probable; it happens to the best of us. However, it's also illegal (as well as being generally frowned upon). So if you find that what you've written sounds very similar to something else, make sure that you hide it well. Change the melody, rhythm, pitch, whatever you want. I wouldn't recommend removing it though. The way I see it, there are only so many notes available, and if you plagarize someone else's combination along the way, so be it. Just make sure that not many people notice.
"Talent borrows, genius steals"

How to Utilize Your Synthesizer

If you have bought your $1000 shiny brand-new KORG and then think that you paid this much just for the preset sounds, then you should take a closer look! All synths are made to manipulate sound itself and the possibilites of them are endless. Here's how you can create the sound that you have imagined!

Steps

Go to the sound that is closest to your desired sound. Listen for interesting effects and do not worry about the basis sound.(It has a French Horn sound, but it has a great forte-piano that you love.)
Find the basic editing area of the synth and look for the oscillator editing areas.
Change the samples given to the sample or basis sound you desire.
Find the filters and change them. Take note that this is where you can change the start time, loudest point and how it decays.
Find the LFO and change the waveform.
Find the arpeggiator and change it to a preset arpeggio or make your own.
Find the FX and find the ones you desire.

My tips

Manipulating sound is based on experimentation. You can read the manual to grasp the knowledge of your keyboard, but you must be the one to change each parameter.
Don't give up on this! It may seem to take forever to change and edit your keyboard to get the sounds you want, but it's all based on how bad you need and want the sound.
Read some of your manual. These steps are very brief and depending on the synth, there could be more or less functions on your keyboard.

Take note that this was based on the KORG Triton LE 61 Key Music Workstation. You may need to look in your manual to find these things that I am talking because they may have different names than above.
Remember that depending on what synth you have, that if you save the program to save it onto a sound you do not care for or a new program. If you save it over the original, the deletion of the old could be permanent.