One quarter note,
one eight note rest,
one eighth note
As you can notice, there is no difference between the first two ways of writing this rhythm.
The results are identical and no mistake is made by writing in one manner or the other.
The third way of writing, on the other hand, shortens the first note.
Yet, in many circumstances, you would hear little difference, mostly if the tempo is very fast.
The fact the same rhythm can be written in different manners makes reading them back harder.
It is best to get used to reading them all, even if some seem easier
A: Start by doing this rhythm, using the syllable "Ta".
B: Remove the "T" from the second "Ta".
C: Hold the first "Ta".
Press the "Play" button on any of the three players below to hear this exercise performed: •Slowly •At medium speed •Fast
This exercise is written three different ways.
The first two give identical results. Some notes are shorter in the third.