I think I found the answer (after switching to Bitwig).
LMMS from the Ubuntu repository uses the Fluidsynth library. When I use it with Carla, it sounds similar. The AppImage, probably, have a lighter or simpler library, that's why there is the difference.

@musikbear, thank you for the suggestion. Both versions use Pulseaudio and there are exactly the same settings. I checked them side by side.

Hello everyone, Usually, I compose music with LMMS 1.2.1 on Linux. That version is from the Ubuntu 20.04 repository. It is stable, but doesn't have the Vestige plugin. Recently I tried the AppImage version. I found it less stable, but it has the Vestige plugin. Now the question. Why does the SF2 plu...

At the beginning of 2020, I made a goal to create and publish 3 albums within a year. That was to motivate me to finish the ambient album that had some draft tracks and continue working on other drafts (for other albums). Later I decided that I will have 3 albums with different genres. And I will ha...

Oh, spacesynth with chiptunes! Very nice.
Of course the second track is better. But for me both track are good. The first one can be used as a background music in some game. While the second can be used both in the game and in someone's playlist.

Hello. I know that midi probably is not too popular now. But I would like to ask you to add the feature to export track to midi. At least with only one instrument and I will be happy with that. I didn't try it but as workaround I should export file via ogg then convert it to mp3 then using "TS ...

The most interesting part starts at 2:25. I like that part. Did you do that with zynaddsubfx, with other instruments or with VST-plugins? Sorry for being too straightforward but I think the guitar part is not so good before 2:25. First time I listened it I though it was too arhythmic related to play...

Thank you everyone.

I mean that I've never tried to add some effects to standard bass except reverberation, although I created bass instruments in zynaddsubfx. Thanks for the link. I will check it when I decide to create another trance track from scratch.

musikbear, thanks for the feedback. I'm registered on the soundcloud site. But when I found that I have only 3hours for free plan I was frustrated. That's why I've never uploaded any track there (two my albums take more than 2 hours and third album is going to be released). But I will submit some tr...