Ties and Dots: Two Ways to Make a Note Longer
The last rhythm lesson gave you a set of note values, each one half the length of the one above it. That halving is tidy and it leaves gaps: there is no single symbol for three beats, and none for five.
Two devices fill those gaps, and they are not interchangeable.
The dot adds half of what it follows
A dot placed after a notehead makes it longer by half its own value. Not by a beat — by half of whatever that note was already worth.
| Note | Worth | Dotted, it is worth |
|---|---|---|
| 4 | 6 | |
| 2 | 3 | |
| 1 | 1½ | |
| ½ | ¾ |
That is where three beats comes from: a half note is worth two, half of two is one, and the dotted half note is worth three. It is the most common dotted value in music, and it exists because a bar of three beats needs a way to be filled by one note.
A second dot adds half of the first dot’s value — a quarter of the original. A double-dotted half note is worth 2 + 1 + ½, which is 3½. It is rarer, and the arithmetic never changes: each dot adds half of what the previous one added.
The tie joins two notes into one
A tie is a curved line joining two noteheads at the same pitch. It means: play the first, and do not play the second — hold instead, for as long as both together.
Two quarter notes tied are one sound lasting two beats. The second notehead is not a note you play. It is a note you keep.
A tie is not a slur. A slur is the same curved line drawn between notes at different pitches, and it means something else entirely: play them smoothly, but play them all. The line looks identical; what tells them apart is whether the notes under it are the same pitch. Reading a tie as a slur adds a note that should not be there, and reading a slur as a tie removes several that should.
Why both exist
If the dot is shorter to write, why is there a tie at all?
Because the dot cannot cross a barline. A note that begins on the last beat of one bar and carries into the next has to be written as two notes, one in each bar, tied. A barline is a boundary a single notehead cannot straddle — bars are how the page shows the pulse, and a symbol lying across one would hide the very thing the barline is for.
And because the dot cannot make every length. Dots only ever produce a value and a half, and then three quarters more, and so on. There is no dotted note worth five beats: a whole note dotted is six, double-dotted is seven, and five never appears. To hold a note for five beats you write a whole note tied to a quarter, and there is no other way.
So: the dot is the compact tool for the lengths it can reach inside one bar, and the tie is the general one that works anywhere. Music uses both on the same page, constantly.
Common mistakes to avoid
- Reading a tie as two separate notes. The second notehead is silence you are already inside.
- Confusing a tie with a slur. Check the pitches. Same pitch is a tie; different pitches is a slur.
- Thinking a dot adds one beat. It adds half of the note it follows. A dotted eighth is worth ¾ of a beat, not 1½.
- Expecting to hear the difference between a dot and a tie. Often there is none. A dotted half and a half tied to a quarter both last three beats — the choice between them is about which one shows the bar’s structure more clearly.
What this hands over
There is no drill for this one, and the reason is worth stating: the tap exercise measures when you strike, and a tie is an instruction not to strike. “Quarter, quarter” and “quarter tied to quarter” differ only in a tap the second one does not have — which a tapping drill would score as a miss.
What ties and dots change is what you can read. Every real piece of music uses them within a few bars, and a rhythm you cannot write in plain note values is usually one of these two doing the work.