sorry sa drawing sana makatulong
if by symbols you mean accidentals. accidentals can either be sharp, flat or natural (natural just cancels sharps or flats). a sharp will increase the pitch by a half-step without moving to the next key. a flat will decrease the pitch by a half-step again without moving to the next key. reason for "without moving to the next key" is because there are notes without sharps or flats.
just raise the note by a number of intervals. not sure what specific symbol it is that you mean.
sample: raise the a note to a c
dahil may parehong himig sa buong kanta o lyrics.
1. whole note=
2. 3 quarter no...