Composing a Sonata

[hermanberntzen]

Anyone have any suggestions on how to compose a sonata in 3 movements like in Beethovens ''Moonlight Sonata'' ?
By using the same pattern like he does.

Thanks 

[quantum]

Take a bunch of sonatas that interest you and analyze their structure.  Try to imitate the structural elements using your own musical style.

Get yourself a copy of all 32 Beethoven sonatas.  Look through all of them.  Listen to all of them.

Also look up the sonatas of Mozart and Haydn.  Scarlatti is also an important composer of sonatas. 

Read up on sonata form.  Here is a start:
https://en.wikipedia.org/wiki/Sonata_form
https://wiki.youngcomposers.com/Basic_Sonata_Theory:_A_Dissertation

[hermanberntzen]

Thanks for the links , and for the answer.
Add ; I can play Beethovens Moonlight Sonata

[nanabush]

It's awesome when people just post a decent answer rather than troll the hell out of a newcomer.

If you have some understanding of harmony (chord progressions/changes) try analyzing the first movement of the Moonlight with roman numerals for the chords (based on C# minor).  This might give you some ideas for some harmonic structure for a sonata.

[bleicher]

As well as learning about the structure of sonata form and harmonic progressions, have a look through some Classical and Romantic sonatas and look at how the composer develops melodies. For example, taking bits of the main theme and changing them slightly, repeating bits in sequence, turning bits upside-down, creating an accompaniment figure that is similar to a bit of the melody. Good luck!