A bundled sfs of;
-Muse4---dev_appimage-latest-30dec21
-Yoshimi 2.1.2_lv2 -latest -30dec21---fixed
-Sooperlooper 1.7.6
-Helm synth/vst
-lv2 synths+ effects
*Tested on fossapup64*&philb666 impup64(pulse audio)please comment if tested elsewhere!
*On bionicpup64 it is missing python3,so some muse midi script do not work with bionic/python2.7.
These are my personal choice pack...it may not fit your needs or taste,tweak/unpack/browse/edit/repack it to yours !!!
Latest,fixed;look for; muse4.Fx-synth_3_5.01.22-x64.sfs
Old;100 mb-muse4.Fx-synth_3-7av.sfs
If need Qjackctl---here;qjackctl-old-9.2 x64 pet
here;readme-qjackctl-0.9.2.v0-x64_qt5.12.pet
**Note qjackctl; you can now find a qjackctl-latest.appimage,hmmmm its 28mb and still missing 1-2 jack dependencie here on impup64,qjack.pet is 604k,wow!!! One good thing with using appimage,it does not seems to mess the libs,but for size/bandwith , a painful luxury . But tested,and it does works.
For Muse4 appimage only;Muse4-Github