There is a very subtle effect of slurs on playback for some instruments, like pianos, flute and traverso, all others play legato by default already (i.e. notes follow one another without any gap, for those mentioned above there is a 5% gap in absence of slurs)
Comments
See: https://musescore.org/en/handbook/piano-roll-editor
Length
There is a very subtle effect of slurs on playback for some instruments, like pianos, flute and traverso, all others play legato by default already (i.e. notes follow one another without any gap, for those mentioned above there is a 5% gap in absence of slurs)