The kundiman is often called the classical Filipino love song. It is actually a musical form (parallel minor and major keys in triple time with verses each consisting of about 12 syllables). It is associated with love songs because it is the song form that most traditional Filipino serenades (harana) were in.
CLASSIC TAGALOG LOVE SONGS:
Lulay - traditional Philippine song about winning over a virtuous woman
O, Ilaw (Oh, Light) - a traditional Filipino serenade
Dahil Sa Iyo (Because of You) - a classic Tagalog love song