Martin's vocal range in the song spans from F3 to A4, the highest note being sung using the falsetto register, despite the fact Martin can reach this note in full voice.
"It's her song that she's singing, using the app, so you get a different version of it than you would on iTunes: it's very raw and affecting.
We removed those moments in the noise recording in which the focal male was singing using Avisoft-SAS Lab-Pro version 4.3 (Avisoft Bioacoustics, Berlin, Germany) by looking at spectrograms with a FFT size of 512 with 50% overlap and a Hamming window.
"If you don't catch on to the words we're singing, use your own," Mr. Ungar said in his introduction to his swing tune, "Backyard Symphony".
She's rapped and sung using "alter-ego" characters like Harajuku Barbie and Roman Zolanski; she's also a self-described "young female mogul" as a member of the Young Money crew, and has even been painted as a sort of spokesperson for the LGBT community in hip-hop.
The band also used a technique known as doubling, where the vocal line used is sung twice.
The song's verses use a rap-sing vocal style while the chorus is sung; throughout the song the use of Auto-Tune is prominent.
The impressive plainsong melody to which the hymn was sung was used by composers of religious works from the 16th century onward, either in its original form or as the basis of a polyphonic composition.
Most of the group's songs were sung in Wolof, using an ornamented vocal style sometimes sustained and soaring, sometimes low and declamatory that drew directly from the griot tradition.
The verses are sung by Aguilera using melisma.
All subjects were trained to sing using the syllable /a/ with minimal mouth movement to reduce movement artifacts in the fMRI session – they were instructed to keep their jaws slightly open and lips closed, so that at the beginning and end of every sung note, only their lips, but not their jaws, moved.
