1
1/2 beats
In standard time it is worth one beat.
Eight.
In six-eight time, a quarter note gets two beats. (An eight note gets one.)
eight
In 2/4 time, an eight note gets half a beat. (A quarter note gets one.)
If it is 4/4 time, then it gets 1/4 of that quarter note. So meaning there would be 16 sixteenth notes in a measure if you filled the bar with sixteenth notes.
To notate a quarter note triplet in Musescore, you can select the quarter note in the toolbar and then press Ctrl3 on your keyboard to create the triplet grouping.
A whole note tied to a half note tied to a quarter note gets seven beats.
3 beats
3 beats
A dotted half note or three beats