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## Re: Multiple repeat nested with alternative

 From: Hans Aberg Subject: Re: Multiple repeat nested with alternative Date: Thu, 12 Mar 2009 14:36:27 +0100

```
On 12 Mar 2009, at 09:49, Werner LEMBERG wrote:

```
________ ________ ________ ________
```                    [1.      ]   [2.                 [1.      ]  [2.
```
| x x x x | x x x x | x x x x :||: x x x x | x x x x | x x x x :|| x x x
```| x |
```
A B C D E F G
```
The correct order of performance/reading should be:
A B C A B D E F D E G
```
```
Honestly, I would just scrap the repeats alltogether and write it
all out.  As a person reading this, I would be very confused by what
was meant.
```
```
I strongly disagree.  This is standard notation since centuries; many
works by Mozart, Beethoven et al. use exactly this.
```
```
```
Hindemith, "Elementary training...", p. 70, uses it. So it seems to be standard. Note the subtlety that the last alternative is without a terminating vertical bar, indicating a continuation.
```
It might suffice to support a syntax like
\repeat volta 2 {A B}
\alternative {C}
\repeat volta 2 {D E}
\alternative {F}
G H I J ...
```
That is, simply indicating one alternative less than in the "volta". LilyPond could then infer that there should be another alternative mark added in the following measure.
```
```
Strictly speaking, this additional last alternative mark is redundant from the semantic point of view: drop it and the music should be played the same. (Though it may have to be there for traditional reasons.)
```
Hans

```

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