Portamento glissandi non-functional in Muse Sounds

[MarcSabatella]

Issue type

Muse Sounds bug

Bug description

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@bkunda update from 1July24: some Muse Sounds instruments do trigger "portamento" style glissando samples, whereas others do not. See my comment below.

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It seems that portamento for glissandi is no longer functioning in Muse Sounds, apparently broken with one of the recent Muse Sampler updates. I know in the past that portamento was only supported where it was specifically sampled, but it seems that currently it just isn't supported at all - at least I can't find any examples where it does work for woodwinds or brass

Steps to reproduce

1. Create score for Bb clarinet, key of C concert (D major transposed)
2. Add two half notes, D5 F#5
3. Add glissando, set to portameno playback
4. Play

Result: no gliss at all

In other cases, the second note is also delayed, or even not played at all.

I have tried lots of different notes, also lots of different instruments. I can't find any that work, although of course I haven't tried everything. But MS Basic works fine.

Screenshots/Screen recordings

no-portamento.webm

MuseScore Version

OS: Debian GNU/Linux 11 (bullseye), Arch.: x86_64, MuseScore version (64-bit): 4.2.1-240090504, revision: github-musescore-musescore-45f916e

Regression

Yes, this used to work in a previous version of MuseScore 4.x

Operating system

Debian 11

Additional context

I can't prove these specific notes worked previously, but I know some did, and right now I can't find any that do. Except solo strings, which pretty much always have some portamento anyhow so it's hard to say for sure.

Wish I knew for sure of a specific case that used to work to test. The case here doesn't work in 4.1.1 either but I assume it's really about the Muse Sampler version, not the MuseScore version. I'm currently on 0.5.1.61

[gerrybass]

i would like to add the same effect to strings. no portamento, diatonical is ok. besides: when it is not wanted, something similar to it can be heard in vl ! playing single notes like quarters.

[Thiago-Morais]

Is worth noting that the playback sounds different when there is an articulation

https://github.com/musescore/MuseScore/assets/21369746/486cb9b9-f246-421c-8f3f-a0896af336ef

[Dima-S-Jr]

Isn't this a duplicate of #20611? And when I meant that portamento can be heard closer to the exit, I was most likely mistaken, because in principle it is not heard at all, and what I heard closer to the exit can rather be called legato. Please also note that issue #16894 includes a request to add playback progress adjustment. Such a feature would be very useful for Muse Sounds.

[bkunda]

I think this issue might need updating, because some sounds now do seem to play back with portamento (e.g. violin 1 (solo), violincello (solo)), while others – such as clarinet and trombone – don't.

https://github.com/musescore/MuseScore/assets/86290556/2693c778-a4c8-4588-81e3-74e1876b6faf

The portamento playback issue seems to be quite nuanced. I've raised an issue specifically about the effect on ties, where it seems that – even if there is portamento playback, that playback is nullified when coming from a tied note.

@zacjansheski @DmitryArefiev @sampleeditor @matthewreadbass this one will need a systematic review to see which instruments are and are not being affected.

[Dima-S-Jr]

I just did a little research. At the moment, unlike MS Basic, Muse Sounds instruments can take portamento only within an octave (but not more).

https://github.com/user-attachments/assets/75fa1d3a-298e-4739-9cb4-6e3c73202ade