I know this might irritate some people and it shows my own ignorance. But, I can't stand it -- I was once told by economists here that there's nothing you could do with other people's taste; well I don't care. . . I just happened to be in a long ride with this damn bus, and all I could hear was that continuing weird noise called Indonesian rap.
I said "weird" and "noise" because of the following.
Rap music, I gather, is a part of hip-hop culture that uses rhyme and rhythm spitted mostly in a very fast beat. I'm no phonologist or morphologist, but I believe human tongue (and mouth) has its limit when it comes to spitting words quickly. It is then easier to spit one-syllable words than two-syllable words. English (and I believe African, too) words are dominated by one-syllables. At least for words you want to rap with. Fine, two-syllables are also used. But not much. Try this (from Usher feat Ludacris and Lil Jon):
I'm (1) in (1) the (1) club (1) with (1) my (1) homies (2), tryna (2) get (1) a (1) lil (1) V-I (2),See, there are only 5 two-syllables and 1 three-syllable (even so, you can spit "decided" as "decid'd" -- so it sounds like a 2.5 only; like "ear" to "e'r", a 1.5). The rest are one-syllables. Imagine if this is to be adapted in Indonesian (forget about rhyme for now):
keep (1) it (1) down (1) on (1) the (1) low (1) key (1),
cause (1) you (1) know (1) how (1) it (1) feels (1).
I (1) said (1) shorty (2) she (1) was (1) checkin (2) up (1) on (1) me (1),
from (1) the (1) game (1) she (1) was (1) spittin (2) my (1) ear ( 2 or 1.5) you'd (1) think (1) that (1) she (1) knew (1) me (1).
So (1) we (1) decided (3 or 2.5) to (1) chill (1).
Aku (2) dalam (2) klab (1) dengan (2) teman-teman (4),Look how many twos and threes (and even fours) we got, just in the beginning! Now try visualize a rapper wannabe who raps with Indonesian words like that. Either he or she can be damn good with extremely fast tongue (Iwa K was fast!) or you would experience a torture.
coba (2) dapatkan (3) sedikit (3) kesenangan (4!)
Jangan (2) berisik (3), kar'na (2) kau (1.5) tau (2) aku (2) s'dang (2) asik (2)....
.... and so on
Not that there's anything wrong with Indonesian words. They just don't go with rap, trust me. You may as well end up funny: you move your hip and wave your hands up and down. But your phonetic tools can't follow.
Even in singing, efficiency matters -- as the economist would say.