What does the piano line in the picture mean?

Hello. I have a question about piano playing. What does the line in the picture mean? Thank you.

I’d interpret that to mean the left hand jumps up for the lower chord in the upper staff and back down again. Not particularly necessary imo.

Lines like that are sometimes by editors of older music to make clear the course of the melody from one hand to another, as in your Liszt example. However, Liszt didn’t put them in because he felt that this was obvious from the notation itself. Nor did Bach, Mozart, Haydn, Beethoven, Schubert etc. ever use such lines.

Some later composers have used lines to show the same thing or more rarely to make clear the motion of one hand from staff to staff, as in the first example. However, I think it better that lines be a last resort and other means be used to show voice leading and hand distribution, since lines clutter up the music. This would be the case in the first example, in which the hand distribution would be obvious to a proficient pianist, and maybe even create doubt for no good reason.

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As a dorico user, I asked a question because I thought I should know it theoretically. Thank you.

You are very welcome @Nohoodo. Having deja vu about the first example. Could you tell me what it is?

Sorry, my English is bad. So I used Google Translate. I didn’t understand what you said. I wanted to know what that line is in the piano performance. Thank you.

@John_Ruggero wanted to know what piece of music it is.

Jesper

Ah. I don’t know what song it is. I took a picture of the choir song, but there was a part I didn’t know, so I asked.

Sorry @Nohoodo ā€œdeja vuā€ is used casually to mean that you feel as if you are repeating something that you did before. In this case I felt that that exact example and question has come up before and I had answered it similarly. Deja vu can be an illusion, however.

This is my first time asking this question. But I haven’t found a clear explanation for it.

The notation is still used in modern editions. Best example is the definitive Alfred Masterwork WTC by Palmer, which exhaustively combed all previous ā€˜Urtext’ editions (which are anything but) to create a ā€˜true’ version. It uses them to indicate the dominant melodic voice in a fugue as it moves through the counterpoint - if it’s not clear.

The usage above isn’t clear to me as a pianist. Not sure what they’re trying to indicate other than a chordal connection. I wouldn’t pay too much attention to it, that’s a long chord with big stretches to play, I’d just find a fingering that works for me.

@Nohoodo I was sure that it wasn’t you, but I have noticed that coincidences of this kind happen on these various music notation sites and find it fascinating. Recently, two different people asked similar questions about the same obscure piece on two different sites about a day or so apart and I was amazed.

@DanMcL That’s the problem with the lines in cases like this: they can create more questions than answers. But I’m pretty sure that @sjanssens is correct. The composer is trying to show that the dotted half note chord with the downward stems is played by the left hand. And also that the composer thinks of the tied middle see as part of that rolled chord but coming in on the previous beat and held for a whole beat before the roll begins.

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I’m not a piano major, so can you explain it to me briefly? Is this line a fingering technique?

Well it’s just how do you play the darn thing? Don’t know the tempo but the only way is with a little pedal I think (not indicated but pianists do it all the time for effect or practicalities like this.) I’d use a little pedaling, mindful of the 16th’s, with the left hand doing the F’s, then go up the keyboard hitting middle C then the bottom treble chord. If this was a slow piece I’d be tempted to Una Chorda the bottom notes (and not worry about what 16ths get caught in it), but that’s a tricky pedal. So yeah, just a little pedal and left hand all that stuff on the bottom.

In this case I wouldn’t interpret the line as voicing, but more ā€˜play all this stuff on the left hand’ which is usage I’ve seen before. Or at least I’ve interpreted it this way - those chords are voiced as chords, don’t need the line to encourage that.

I’m not an expert, so I don’t think I understood what you explained. It was very helpful. Thank you all.

Just so you don’t go away disappointed @Nohoodo

@sjanssens gave you the answer for the first example. It is showing that the left hand plays the lower four notes of the rolled chord on the upper staff.

In the second example the lines are showing the melody moving back and forth between the hands.

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