I have a version of "Jesu, Joy of Man's Desiring" that is in 9/8. I've read that people find the 3/4 time signature version more common.
The 4 8 time signature indicates that there a four beats per measure and each beat is an eighth note.
Seven beats in a measure, an eighth note gets one beat.
This depends on what the time signature is. The time signature is the fraction looking numbers at the beginning of the piece. The top number represents how many beats there are in a measure. The bottom number tells you what kind of note gets one beat. The time signature 4/4 would be interpreted like this. The top 4 suggests there are 4 beats in every measure. The bottom 4 stands for a quarter note that gets one beat. If the time signature is 4/4, a half rest would get 2 beats, just like the half note. However, if the time signature is 2/2, then a half rest would get one beat as there are only two beats per measure and the bottom 2 represents a half note getting one beat. If the time signature were 6/8, where there are 6 beats in every measure, and the eighth note gets one beat, a half note would get 4 beats as there are 2 eighth notes in a quarter, and two quarter notes in a half note. 4 eighth notes in a half note.
it gets 6/8 beats
An eighth note takes up 1/8th of a measure. The length of the measure is determined by the length of the time signature. For instance, in common (or 4/4 time) there are 4 beats in a measure. A whole note takes 4 beats, a half note takes 2, a quarter note takes 1 beat and an eighth note gets 1/2 a beat.
. One beat. [[... Not quite. That is only true if the time signature has a 4 in the lower half. This means the beat is a quarter note. If your signature is 7/8 (for example) this means that there are 7 beats per measure and the eighth note gets the beat. In a given time signature and tempo, it would take the same amount of time to play two eighth notes as it would to play one quarter note.]]
The note that is a quarter of a measure long varies between time signatures. In the most common time signature, 4/4, the quarter note is a quarter of the measure. In 2/8 time, the eighth note is a quarter of the measure.
Mixed meter means that the time signature changes during the piece being played. It may start out, say in 4/4 and then change to 6/8 and back to 4/4 again. 4/4 = 4 beats in a measure with the quarter note getting the beat. 6/8 = 6 beats in a measure with the eighth note getting the beat.
6/8 time
Top number means how many beats in a measure and the bottom number means what note gets the beat. in 6/8 time there are 6 beats in a measure and the eighth note equals one beat.
6|8 time means there are six beats in a measure, and the eighth note gets the count. So, there are six eighth note beats per measure in 6|8 time.
It depends on what time signature you're in, and therefore which note gets the beat. The most common time signature is 4/4 in which the quarter note gets the beat and there are four beats per measure. In that time signature the breakdown would be: Whole Note/Whole Rest = 4 beats (a full measure) Half Note/Half Rest = 2 beats (half a measure) Quarter Note/Quarter Rest = 1 beat ( 1/4 of a measure) Eighth Note/Eighth Rest = 1/2 a beat ( 1/8 of a measure) Sixteenth Note/Sixteenth Rest = 1/4 a beat ( 1/16 of a measure) And you can continue on subdividing the beat into smaller values. Then there are dotted notes/rests, which look exactly as the sound: one of the above notes/rests with a dot next to it. This dot indicates that you add half of the note's value to it. So a dotted quarter note would be 1 beat + 1/2 a beat (an eighth note) in 4/4.