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how do i change in keys? All by my self - was in the key in F major and transition to C# minor in the middle of the solo?

i notice that "all by my self" and "never going to fall in love again" by eric carmen was based on the third movement from Rachmaninoff's Symphony No. 2.

if you view the piano solo in celine dion youll notice that it switches keys

http://www.e-chords.com/chords/celine-dion/all-by-myself

here he says that the key signature switches

1) how do i switch keys in a song or piano solo?

2) what are some tips on doing it neatly and smoothly

3) what are some tricks or some easy ways to go about it

4) is this consider chromatic-ism or chromatic chords

5) if i wanted to do it in c major then transit to g minor how would i do it?

6) what are some good keys that work well together

  • The way I like to think of it is: think of your chords in sets. Look at the fundamental chord of the first key (let's say, {C, E, G, B}) and then of the second key (i.e. {G, B, D, F#}). (This is a pretty smooth transition, since the only difference from a I-V relation is the sharp F.) Simply look at the nearest tones between each set, and look for half-step intervals or identical notes. These changes will sound 'better'. Whole steps are okay but keep those to a minimum. If the chords are far apart, insert more chords (like sudoku!) to shorten the 'distances'. Just a heuristic but I like it – Darren Ringer Jan 7 '15 at 2:48
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First of all, I do not think that there are keys that "do not work well together". There are just better or worse ways to make a transition from one key to another. Obviously, there are keys that are very remote from each other, but nevertheless, a good composer will be able to make a convincing transition. Of course, certain key changes occur much more often than others, especially changes between closely related keys. However, these more common key changes also have less potential to create an interesting effect.

Changing keys is called modulation, and in the Wikipedia article on modulation you'll find a lot of useful information, especially about traditional (i.e. classical) ways of modulation. I will mention a few tricks (some of which fall into the categories explained in the article) that are used in popular music, because I think that's what you're interested in:

  • surprise: just go from one key to another without any preparation.
  • re-interpretation of chords: a chord with a certain function can appear in a different (related) key with a different function, i.e. an A major chord is the IV chord in E major, and at the same time it is the V chord in D major (or minor). So you can use this chord to change between these keys.
  • use the V chord or a ii-V progression approaching the new key: e.g. if you want to go (from any key) to C major, use a G7 chord, or a Dm7-G7 progression.
  • change the quality of a diatonic chord, i.e. if it's major make it minor and vice versa. Then use this new chord as a diatonic chord of a new key. E.g. if you're in C major, then the vi chord is Am. Now change it to A, and use it as the IV chord of E major.

I think that these types of modulations cover a great deal of ways to change keys used in pop tunes.

Now for an example, as suggested in your question. If you want to modulate from C major to G minor you could use the third approach explained above, i.e. use a 2-5 progression approaching G minor:

 some progression in C ...             2-5 to G minor   some progression in Gm ...
                                                                    | 1.
||:  C   F  |  G7   C  :||  C   F  |   Am7(b5)  D7   ||:   Gm   Eb  |  Bb    F :||

 | 2. /   /   /  /  and back to C
 |   Bb      F  G7  |   C    ||
  • "Work together"? Maybe. Certainly it's easier to make a smooth transition between keys with features in common. But maybe you want "Dramatic" rather than "smooth". Jump straight from C major to F# major! – Laurence Payne Jun 9 '15 at 14:15
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1+2+3+5. If I get what you mean, some keys do not work well with each other, so make sure that you find out if the two keys sounds nice together before you make the change (plan). Use a circle of fifths! If the two keys you want are far from each other, they don't sound good as a transition! To change midway, you need to "prime" the audience - make them know you are about to key-change. A nice way is to use dominant-7 chords - they are great in making key changes! Another thing to know - when changing keys, find a note they share and use it at your advantage - here in this pic, I know A minor and E major share the common note E, so I used that. enter image description here

  1. Over at http://en.wikipedia.org/wiki/Chromaticism#Types_of_chromaticism, there is a great list of all chromatic chords that you might be interested in!
  2. Remember to prime the audience! When changing major to minor or vice versa, I like to prime them with the key change then switch to the final key signature. enter image description here

6) Have you seen the circle of fifths? It is a great way to start. The circle of fifths is always used to make up some good chord progressions (and they sound good) so it is a good idea if you can change the song key's signature using that circle, too! Simply locate the key you are in, and anything beside it will sound great as a key change.

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