Does the following sentence differ at all with regard of ordering of events? "I had finished my homework before I practiced the piano."

In the sentence I had finished my homework
before I practiced the piano, there are two separate past tenses that are
employed:  the past perfect tense and the simple past tense.  Both of these tenses are
in the Basic form.

Indeed, the two forms of the past tense
do differ in their expression of time, or the ordering of events.  The past perfect
tense, for instance, indicates an action that occurred and was completed in the past
prior to another past action.  Thus, the verb had finished
is in the past perfect tense. [a compound tense, with the
Latin word perfect meaning
completed] 

On the other hand, the simple past tense
indicates an action completed by itself in the past, or an action completed in the past
after a prior action.  Thus, the verb practiced is in the
simple past tense [simple meaning
one verb].  So, the author of the above sentence practiced the
piano only after finishing the homework, the first action.