Lojban seems to have a lot of short words, resulting in very many syllables needed for rather simple sentences.
This is a matter of perspective. Lojban is simply a very very very weird language. When translating into Lojban from a very different language like English (for instance) it can thus sometimes be difficult to say something concisely or in a way that doesn't feel awkward. But the same is also true in reverse-- for instance it's famously difficult to translate into English sentences from Lojban that contain both a command and a question, like the infamous "ko mo" (Make it so that you have some quality, what is that quality?!? or something) or like (inventing an example) "ko klama fo lo drata mu'i ma" (You must go (there) by a different route, and also, why are you going (there), or, why is that? gosh it really is hard to translate :/)
It also seems heavy on consonants, while vowels are arguably more important when singing.
This is a matter of style. There's two levels of stylistic choice at which the current consonant-heavy sound of Lojban is constructed (that come to my mind at the moment, anyway). First, there's the choice to leave out buffer vowels. You can say a buffer vowel between EVERY consonant cluster if you want, which can make it almost Polynesian in voweliness. Secondly, there's also the choice to prefer shorter versions of lujvo over ones with fewer clusters, for instance we usually say "ninpre" for newbie but we could prefer "ni'opre" which has a simpler cluster at the expense of one more syllable.
That said, I quite enjoy the clustery sound of today's Lojban. It's better for some styles of singing than others. I think Lojban rap sounds cool, to me the consonantiness gives a pleasant complexity to dense phrases. But who can say really, it's a matter of taste.
Do any of you have any experience in making music or poetry in Lojban and would you mind sharing your thoughts about how well suited Lojban is this?
I write a little song in Lojban almost every day. I can't say my little songs are great works of art, but they're not meant as that, just to entertain myself and express myself. To me Lojban is a beautiful place to play. It's so delicate and living and yet so defined and precise, like Calder's mobiles.
But it's a matter of taste. Taste it and see how you like it.
It's not a good language if you expect very many people to understand you, of course. But I'm here, and I'll be happy to hear anything you come up with.