some basic melodic ideas.
Ok - so you are going to be the composer now, but I'm going to give you some rule sets to help you make some of your decisions. At this point we probably won't end up with something that sounds like chopin crafted it, but it will at least work harmonically and rhythmically. I'll provide a score to show all the rules in action.
Rule 1 - rhythm.
LH: plays in triplets - as we did in first steps.
RH: Plays a rhythm that follows crotchet, quaver quaver, crotchet, quaver quaver every bar.
Rule 2 - choosing the notes
We will initially follow the same progression that we have done so far, however in first steps the 'chord' is changing every bar, in this exercise it will be every 2 beats, or twice per bar.
So in F major, the progression will again be F, Bb, Ehalfdim, Am, Dm, Gm, C.. you can do which ever key you choose but I will continue to demonstrate in F.
So the left hand will play as in first steps, but we change note every 2 beats - refer to my score. After you've had a go at this I'll give you another task to play the same thing we create hear but to completely reharmonise it and experiment with different chord changes/progressions.
CONSTRUCTING THE MELODY IN THE RIGHT HAND.
Rule 1 - We will play a 'chord tone' on the 1st and 3rd beat of each bar (all the crotchets), as in if the chord is F major the RH hand will play either F, A or C. Which one is up to you, then on the 3rd beat of the bar the chord will change to Bb, and the RH will play either Bb D or F.
Rule 2 - on the 2nd and 4th beats of each bar we will play scale tones that lead to the chord tone that will follow on the next beat. See the score to really understand what I mean here.
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The score provided is not really intended to sound great, - so much as highlight some basic aspects of composition/improv. What you should do is try different transitions.. pick different chord tones to change to, and therefore different scale tones that lead to them.. settle on the one you like the sound of best... See what you can come up with..