transposeKey() no longer returns keysigs with more than 7 sharps/flats
transposeKey() no longer returns keysigs with more than 7 sharps/flats
Issue #12918: double bar disappearing when removing courtesy key sig
Issue #12918: double bar disappearing when removing courtesy key sig
Mandola is usually written in Treble clef 8vb
so musescore should also use that as a default.

Tuning of a mandola is g-d-a-e one exactly the same as a
mandolin just one octave lower - not equivalent to a viola obviously
so the ranges also had to be fixed.
tune notes affected by micro-interval accidentals

Uses the default settings of the microtune plugin (which, having a GUI,
can't easily get ported to the new QML plugin style) plus Koron and Sori
Partial fix for Issue #19506

Prall and mordent now play correctly
Merge pull request #162 from ChurchOrganist/Issue#19506

Partial fix for Issue #19506
Merge pull request #158 from Jojo-Schmitz/microtone

tune notes affected by micro-interval accidentals
Merge pull request #144 from dc7kr/master

Fix for Mandola Clef and tone range
Merge pull request #136 from AntonioBL/12918_double_bar_key_sig

12918 double bar key sig
Merge pull request #79 from heuchi/fix_transposeKey

Fix transpose key
low level optimizations
more small low level optimizations
replace some qt container with hand crafted single linked list
fix regression tests
fix #15787
fix crash when copy/paste measures with slurs
new copy/paste tests
more copypaste tests