hey i'm told if i learned the scale i would be able to figure out the key signature of a music sheet?

Question

what exactly is a key signature and how would it help me play the whole music sheet of the song i wanna play for example, i wanna play the piano music sheet of numb by linkin park composed by theken, how would i be able to tell the key signature of the music sheet, and more importantly, how would i be able to play knowing what the key signature is, assuming if i learned all my scale, major, minor, blue, ...

Answer 1

um do you know how to read music? as in, you know what each piano key corresponds to on the sheet of music? because that is way more important than the key signature.

the key signature indicates how many sharps or flats there are on the major scale of that piece of music.
A sharp is a symbol that looks kinda like this: #
A flat looks kinda like a lowercase b except slanted or something. If the music has no sharps or flats, it's in the key of C, or A minor.

Answer 2

Learning scales certainly helps, as well as chords. If you don't know the notes/keys of the piano, learn that first, then how to read music.
When it comes to key signatures, here's the rule of thumb:
for sharps #, the key is a semitone above the last sharp (ex. E major's last sharp is D). For flats b, the key is the second last flat (E flat is Bb, Eb, Ab). F major is the exception here, as it has one flat. There are probably accidentals, also, which carry through the bar.

Answer 3

For each key signature, there is a major and minor key.
So the key signature alone won't tell you.
The easiest way to determine what key a composition is in is to look at the last chord.
99 times out of 100, that is the key which the composition is written in.

Answer 4

The key signature is given at the far left of the staff . It tells you which notes are to be sharpened and which are to be flattened throughout the piece.. If there is no key signature then it is in the key of c.
You still should learn how to read music.

Answer 5

A key signature is a marking in the left of the musical staff that tells you which note or note(s) are flat or sharp throughout the piece. The exception to this rule is when the sharp or flat is cancelled by a natural sign.

Generally, you will find the key of the piece with the first chord of the piece, usually a triad (a group of three notes that make a chord), or looking at the first guitar fretboard symbol that shows the chord name (e.g., G7, F, etc).

If you understand all of the major keys, then you will know, by the list below, each major key and its corresponding number of sharps or flats in the major key's key signature:

G major--F# (1 sharp)
D major--F#, C# (2 sharps)
A major--F#, C#, G# (3 sharps)
E major--F#, C#, G#, D# (4 sharps)
B major--F#, C#, G#, D#, A# (5 sharps)
F# major--F#, C#, G#, D#, A#, E# (6 sharps)
C# major--F#, C#, G#, D#, A#, E#, B# (7 sharps)

F major---Bb (1 flat)
Bb major--Bb, Eb (2 flats)
Eb major---Bb, Eb, Ab (3 flats)
Ab major--Bb, Eb, Ab, Db (4 flats)
Db major--Bb, Eb, Ab, Db, Gb (5 flats)
Gb major--Bb, Eb, Ab, Db, Gb, Cb (6 flats)
Cb major--Bb, Eb, Ab, Db, Gb, Cb, Fb (7 flats)

Hope all of this helps.