You can play any chords, even those outside the key. The rule is: If it sounds good, it's good. You'll notice that songs written in a specific key tend to use mostly chords from that key, but other chords are regularly peppered in there too.
- What does it mean for a song to be in a certain key?
- Can you play any song in any key?
- Are chords necessary?
What does it mean for a song to be in a certain key?
Most music is in a particular key. If we say that a song is "in the key of C," this means that the pitch C sounds like the most stable “home note” (or tonic) for the song. Likewise, most songs use notes within a particular scale — a collection of notes in order from low to high.
Can you play any song in any key?
But to the answer. Yes, if a song is purely diatonic (using only the notes from its scale, with no extra # or b. It can be played in any key out of the 12. Also, minor tunes will work similarly.
Are chords necessary?
Chords form the basis of harmony in music. ... For example, if you could only hear the melody, it might sound sparse, but once chords are added, the melody really starts to make sense. You might even say that songs can take on a new meaning, depending on the performance of the chords in accompaniment of the melody.