Shift, glissando, or portamento
Stage 3's slides-and-octave-signs taught you to read a glissando line and to recognise
portamento. Now that you can actually shift, here's the full picture: a clean shift, a
portamento, and a glissando are the same physical motion, at three different levels of
how audible you let it be.
Three levels of the same slide
- A clean (silent) shift disguises the slide. The departing finger lifts just enough that it stops sounding as the hand travels, and the new finger lands cleanly on the new note. This is the default, invisible-technique goal for almost all shifting — including everything you practised in the last two lessons.
- Portamento ("to carry") is a short, subtle, expressive slide — usually starting late, just before the arrival note, rather than evenly paced the whole way.
- Glissando is the full, evenly-paced slide the whole distance — meant to be heard as a journey from note to note, not disguised. This is what Stage 3's line-between-two-noteheads notation asks for.
The full evenly-paced glissando version — the whole descent audible, start to finish — is the one Stage 3 already showed you notated with a line.
Which era wants which
Portamento and glissando as expressive choices are a Romantic (19th-century) development — they weren't part of Classical or Baroque violin technique. Sliding your way through a Mozart phrase the way a late-Romantic recording would is a style violation, the same way playing every note with continuous vibrato would be (Stage 7's territory). Play Brahms or Elgar with zero portamento, on the other hand, and you've missed part of their idiom. This is the same "the symbol tells you WHAT, the era tells you HOW" framing Stage 3 built — now it applies to a technique the page doesn't even notate.
Try it
Try
Shift from D (3rd position, A string) down to B (1st position) three ways: clean and silent, a late portamento scoop, and a full audible glissando the whole way down. Same two notes, three completely different characters. Notice which one sounds "correct" for a plain scale passage, and which sounds like a Romantic solo line.
The usual mistake
Adding portamento to Classical repertoire because it feels expressive, or — just as often — letting an ordinary shift turn accidentally audible through sloppiness, which reads as a mistake rather than a choice. Which of the three you use should always be a decision, not an accident of how careful you were.