Wow BUTTERFLY album! It´s definitely her best artistically. So many things came together, there was sadness but there wa salso an incredible feeling of hope and beauty, like the bith of a buttefly. It´s not her best vocally, or her best mix of quality and commercial appeal (Daydream would be that probably), but this is her best as an artist. "my all" is so beautiful and simple, "Honey" is like the announcement of the rebirth, "BUTTERFLY" is so damn touching and hair raising at times... and "Whenerver you Call"... I think that´s the most beautiful song on the album. Her belting was still very Daydream like but she definitely started showing the big change in her vocals with that stunningly sexy voice, which perfectly suited all the new R&B/hip hop songs like it was nothing. Impossible to see more vocal versatility in such a short time. Because Mariah´s voice has been in constant chage, from the beginning. Her voice in her debut album is so different from her voice in "Music Box", just 3 years later, and different from her voice in "Daydream" and tremendouly different in "Butterfly" just 1 or 2 years later and so on. What an instrument! But also, for that same reason, so delicate. No other voice like hers, despite the big amount of attempts we´ve seen in the last 15 years :) (apart from the songwriting of course).