*****Although I am trying to give you enough information to be able to read music, the easiest method of learning it that I know of consists of doing a great many exercises starting from a single note played many times over, with further notes and timing subtleties added bit by bit as you go along. This takes a lot less time than you would think.*****
Knowledge necessary to follow this article.
Before you start this article you will need to know certain things that have been covered in the chord articles, such as what a note is, how notes are named, and you need to have some vague idea of what a bar is. It will be very good if you can play a couple of notes on your instrument, and even better if you can play more and know what they are called. A knowledge of transpostion will be useful if you are playing a 'transposing instrument', and the 12 bar blues chord sequences book on this site has a short section in it on that subject.
To start.
Reading music in the form of dots and sticks scattered along horizontal lines is based on a very simple principle even though it looks complicated.
If we look at a typical piece of written music on a single stave (the stave is the set of five lines on which your basic tune is normally written) and then consider the requirements of the player, we have most of the answer to what they mean:
The player wants to know what notes to play and when, and this is a way of telling him or her.
The higher the dot (or hollow) on the stave, so the higher the note, and the different types of dots, stalks and hollows tell us how long each note is -and of course the lower the note on the stave the lower it will sound.
Luckily, you don't have to memorise most of this, because when you actually practice reading music you will learn it all automatically - even if you don't remember the names of notes (which doesn't matter as long as you know what they mean).
The hollow notes with vertical lines either side are the longest notes we are likely to come across (although I expect there are some others I have never seen that last longer).They are called breves:
The hollow notes with no vertical lines are called semibreves (half a breve!):
The hollow ones with a vertical line attached are called minims - a bit strange for what is in fact a demi-semibreve:
The dots with a single vertical line attached to them are called crotchets - and in most circumstances count as one beat:
If we put a single flag at the end of the vertical line of a crotchet (the vertical line is normally called the stem), thus:
it halves the length of the note (and in the drawing above it is half a crotchet, which is called a quaver),
and if we put another:
It halves that note again. This time it becomes a semiquaver, (meaning half a quaver) - leaving the note half a half (a quarter) of it's original length.
Then with three flags we have a demi-semiquaver - an eighth of it's original length................
and so on ad infinitum, although in real life things rarely go beyond 4 of these little flags - a hemi-demi-semiquaver:
(We shouldn't worry too much about what they are called as long as we know what they mean).
A problem would occur when writing groups of short notes like this but for the fact that we can replace the flag with a straight line joining groups of notes together, as in:
Take a break for a moment.
Time
There is another factor to be considered before we go on and analyse an actual piece of music, and that is something we call the time signature. The time signature looks something like this:
and tells us two things: How many beats in a bar (read the chordbuilding and playing articles if you don't know what a bar is), and which type of note is considered to represent one beat.
Thus in this:
the top number represents 4 beats per bar, whilst the bottom number represents the type of note that will represent a beat - in this case a crotchet (see above) - the number 4 at the bottom always meaning crotchets.
And in this:
the top number represents three beats per bar (a waltz or minuet) and the bottom tells us that once again it is a crotchet per beat.
As I said above, the bottom digit always has the same value, so wherever you see a 4 at the bottom it always means crotchets, and whenever you see an 8 at the bottom it always means quavers (It would be very rare, but you might one day come across a 16 at the bottom, representing semiquavers.)
Common timesignatures are 2/4, 3/4, 4/4, 12/4, 3/8, 6/8, 12/8 (which often appears in rock-n-roll ballads), and of course it is possible to have bars that are, say, 8/4 (with 8 crotchets in one bar), or 4/8, (with 4 quavers in one bar).
6/8 is 6 beats of one quaver each per bar, and I expect you will agree by trial and error that it sounds different to 3/4, which can theoretically be played in the same time.
3/8 is just a convenient type of three-time, and can be interpreted as a waltz, mazurka or minuet if you like.
Here, pause to consider what the 8 will be if the 4 is a crotchet. It will be half a crotchet, which is (see above)........?
That is almost enough about time signatures for modern music, but we may want to play more obscure things.
From time to time you will come across such time signatures as:
2/2, 3/2 and possibly even 2/1 - although I have never seen it.
I have only experienced finding these more obscure time signatures in antique music - typically 16th century stuff.
Stop for a breather.
There is more in music-reading 2.