Slides and octave signs
Two more page things. A line drawn between two notes means slide between them. And an 8va over a passage means "play this an octave away from where it's written."
Glissando and portamento
| Mark | What it is | How it sounds |
|---|---|---|
| glissando — "gliss." + a line (straight or wavy) between two notes | slide the finger, sounding the pitches on the way | a full, deliberate slide — you hear the journey. Wavy = every step audible; straight = a smooth sweep |
| portamento — often not written at all | an expressive slide that carries one note into the next — shorter, subtler, starts late | a small vocal-style scoop, just catching the arrival note |
Portamento is a Romantic technique. Classical and Baroque violinists barely used it — a slide you choose to add to the Mozart Adagio is a Romantic-flavoured decision of yours, not something the page is asking for.
Hear a glissando
Octave signs
| Mark | Means |
|---|---|
| 8va (all'ottava), dotted line above a passage | play it an octave higher than written |
| 8vb (ottava bassa), below | play it an octave lower |
| 15ma | two octaves higher |
| loco ("in place") | cancel the octave sign — back to written pitch |
The note names never change — only the octave. These keep very high (or very low) passages off a ladder of ledger lines. You'll lean on them properly in Stage 6, when the notes start climbing past first position.
One thing to expect: a violin part almost never leaves treble clef. Where the music goes very high it uses 8va, not a switch to another clef — so don't sit waiting for a bass clef that isn't coming.
Try it
Try
On the A string, play D with your 3rd finger, then slide that finger slowly down the string toward the open A — the bow keeping going, every pitch audible on the way. That's a glissando. Now do it as a portamento: hold the D, then a quick light slide catching only the last moment before the A. Two very different gestures from the same two notes.
The usual mistake
Adding portamento to Classical music because it feels expressive — in Mozart it's a foreign accent. Sliding a glissando too fast, so the journey vanishes. And reading an 8va passage at written pitch — an octave low — because you didn't spot the dotted line.