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Re: lilypond progress

From: Arne Babenhauserheide
Subject: Re: lilypond progress
Date: Sun, 12 Mar 2017 22:58:44 +0100
User-agent: mu4e 0.9.16; emacs 25.1.1

Hi Harm,

I see your input, but I’m comparing this with how it looked like 5 years
ago: I could not even compile my own songs anymore with Guile 2.x

First for the most important part I see in your mail:

> And we still may be dropped from major distros or lilypond with guile2
> is offered, which may give us bad reputation.

This choice is much, much better than before. The choice before was "I’m
losing Lilypond!" (and not much of a choice).

Now the choice is: "Lilypond might be slower"

Whether being slower actually gives Lilypond a bad reputation is mostly

You show me a factor of 2 in speed for small documents. That means: It
works. And factor 2 is actually much better than I thought.

The non-stability for your larger score is something to fix, but it is
something which can actually be addressed systematically and no longer a
roadblock users cannot cross without losing all ability to compile their
music. And it is something which hits people who might actually have the
skills to fix it (those who embedded scheme in the lily documents).

With this I do not want to say that everything is rosy. There for sure
are challenges. What I want to say is that there is a world of
difference between the situation now and the situation a few years
ago. And there is no longer reason for gloom: The challenges now look
solvable in principle and an praxis. It’s still unnerving that
additional work comes, but now there’s a path and people can go for it
and optimize Lilypond for Guile 2.x, as it was optimized for Guile 1.8

Keep in mind what Andy Wingo said at FOSDEM 2016: With Guile 2.x we need
to update our performance model:

Best wishes,
Unpolitisch sein
heißt politisch sein
ohne es zu merken

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