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I'm trying to learn a classical guitar piece, Valse by Napoleon Coste, and the score specifies that I am to play a partial capo at the beginning of the piece. I'm unsure what the 4/2 means in front of the ₵II. Is it the number of frets I should barre?

There are a few of these, such as 2/2₵V and 3/3₵II.

Here is a picture:

enter image description here

  • I find the L.H. fingering in that bar in the middle strange. It's an open A - or Am, and all fingers are available. Why change '1' from E to A? Or use a half barre? – Tim Jan 10 '15 at 9:05
  • Fingerings on these sorts of pieces are suggested rather than specified. Someone was trying to be helpful. Sometimes it is. Sometimes the player of the moment comes up with a better alternative for themselves. – Tim Jan 10 '15 at 9:09
  • If the composer is still alive and the score does not clarify. Email the composer and ask them. – jjmusicnotes Jan 10 '15 at 22:56
  • @jjmusicnotes - good idea - sadly we're late. But not as late as M.Coste. Would be 210 yrs old. Now de-composing... – Tim Jan 11 '15 at 0:07
  • @Tim - That's unfortunate timing; his inbox would be overflowing. – jjmusicnotes Jan 11 '15 at 15:27
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Okay, after quite a bit of thought I think I have worked this out. However, before answering, two things: firstly, I have to say, I haven't seen this notation before and it doesn't seem very helpful; secondly, the other answer and comments helped me work this out.

Also, it is worth pointing out for other readers, that this passage of music has the key-signature of A Major, as this isn't shown in the picture.

The clue is in the 4/2 marking in your picture. A common way to play this A major shape is to use a first finger barre that presses down fret 2 on strings 3 and 4 only, with the second finger pressing down the C# at fret 2 on string 2. (This avoids what I call the A-Chord-Problem, where it is difficult to keep fingers 1, 2 and 3 all close to fret 2, which I describe in this answer.) As I say, it is common to use this two-string-barre to play this chord shape, particularly in classical guitar music. So, I'm pretty sure the 4/2 half-barre notation used here means "extend a barre over four strings (i.e. strings 1-4) but only press down the top two of these four strings".

This would mean that 3/3 and 2/2 would also make sense. In the example above the 3/3 barre fits with this explanation too: you would do a half-barre over strings 1-3, in order to play the A and C# at fret 2 on strings 2 and 3. Although you don't need to play fret 2 string 1 here, it still makes sense to press it down, as it is harder not too! Hence the 3/3 marking.

Like I say, I think this notation is unhelpful; much of the information would be fairly obvious from the fingerings and position markings alone. The extra information merely "clutters" the part.

Here is the same passage, from an older edition that I found at IMSLP:

enter image description here

This seems to have the same fingerings, and is therefore identical, apart from the barre markings. I would say that the fingerings make it perfectly clear how to play this passage, and that the barres would be implicit, and most guitarists would work them out while playing the passage. And anyway, as @Tim points out, fingerings are only suggestions anyway. To give an example; whether you use a barre in the A major bar discussed above, or whether you lift finger 1 from the A on string 3 to the E on string 4 is largely a matter of taste. It depends upon whether you want the full arpeggio to ring here, or whether you would like a little more definition in the bassline, which lifting the A would achieve.

And this gets to the very heart of how one should approach the study of pieces such as these: if one is simply using them for a bit of sight-reading practice, then don't worry too much about the different ways in which any particular fingering affects the sound of a passage. If on the other hand one is really studying such a piece, it is always worth considering: whether you agree with any given fingerings; how the fingering affects the sound of the passage; and also considering whether there are other fingerings that would make it easier to play a passage or make the music sound different (there are often very many!)

The simpler an editor's markings are, the more it encourages consideration of different fingerings, and so ways to play a passage. From my experience as a classical guitarist and teacher, I'll end with just two more points about fingerings and editorial markings: firstly, good fingerings and editorial markings make it far easier for students and experienced guitarists alike, to play pieces; secondly, the quality of fingerings and editorial markings varies greatly - some are great, and some are not good at all, even from well known publishers.

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    +1 for the as usual, well thought out answer. It may have been mentioned before, but a way round the 'A chord problem' is to use 2, 3 and 4 instead of 1, 2 and 3. They usually take up less space - pinky is smaller than index. Also it sets up the fingers for later barre chords (A shape), and I encourage leaving the index on G# 3rd string, as it's often the chord preceding or following A anyway. – Tim Jan 14 '15 at 11:07
  • Good point, @Tim. – Bob Broadley Jan 14 '15 at 11:15
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From the picture, it looks like the top number indicates how many strings are part of the barre, and the lower number indicates the un-barred strings. But if there's really a 2/2 in there, then this can't be the answer.

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