Murmúrio was introduced in 1960 by the composer Djalma Ferreira himself on his album Convite ao Drink, featuring singer Luiz Bandeira and chorus. The next year, Ferreira issued a rather restrained second version on Drink em São Paulo, before he released a slightly altered instrumental version of his original arrangement on his follow-up album Combinação Insuperável, and finally, a third arrangement on Baile de Formatura with wind section.
In single format, Murmúrio was released only in 1960 by Vera Maria and in 1961 by Miltinho whose fabulous version became one of his most popular hits. Nelsinho’s striking arrangement for Miltinho was reutilised the same year for Fafá Lemos’s version. Miltinho re-recorded Murmúrio the following year on his first greatest hits album, this time arranged by Ruben Perez ‘Pocho’. ‘Pocho’ also arranged Maysa’s tasteful interpretation, and his arrangement was reutilised likewise on an instrumental album, this time by Héctor Costita on his alias debut as Don Júnior.
Pianist Izio Gross added two of the song’s finest versions to the list, first in 1961 on his debut album Isto é Bossa, featuring Édison Machado on drums.
Sixteen year old Elis Regina included her fine performance of Murmúrio, elegantly arranged by Severino Filho, on her debut album Viva a Brotolândia. Same year, same label, Steve Bernard reutilised either the arrangement or probably the backing track on his album Nunca Num Domingo.
Rumour has it that the mysterious L’Orchestre Brésilien ‘Ritmo da Bossa’, releasing a jolly rendition of Murmúrio in 1962 in France, might actually be the alias of Silvio Silveira since he also recorded as Les Rhytmes Brésiliens de Silvio Silveira, Silvio Silveira et Son Grand Orchestre Brésilien and Silvio Silveira y Sus Ritmos Brasileños.
The equally enigmatic Conjunto Balambossa, in fact an alias used by the label Coledisc to compile albums from original releases by various artists, issued a rendition of Murmúrio which is actually Celso Murilo’s version from his debut album Sambas na Passarela. Celso Murilo also played the organ along with Baden Powell on guitar, Luis Marinho on bass, Milton Banana on drums and Rubens Bassini on congo as one of guitarist Paulo Nunes’s Night Boys on his debut album Certinho Para Dançar.
The song enjoyed quite some popularity among musicians with fine interpretations by Moacyr Silva, Pedrinho Mattar, Turquinho and Luiz Bonfá. However, recordings were limited until 1964 with an outlier in 1968 when soprano Lenita Bruno recorded the final rendition with adapted English lyrics by Ben Raleigh. Then, Murmúrio was unfairly buried in oblivion after about 35 recordings.
Selected recordings of Murmúrio:
1. Djalma Ferreira featuring Luiz Bandeira from the album Convite ao Drink (1960, Discos Drink LP-DF-13.006)
Art work for Convite ao Drink by Joselito with photograph by Mafra
2. Djalma Ferreira from the album Drink em São Paulo (1960, Discos Drink DLP-DF-13.007)
3. Djalma Ferreira from the album Combinação Insuperável (1960, Discos Drink DF-LP-13.008)
4. Miltinho from the album Miltinho (1961, RCA Victor BBL 1113)
5. Fafá Lemos from the album Dó-Ré-Mi-Fafá Lemos (1961, RCA Victor BBL 1145)
6. Izio Gross from the album Isto é Bossa (1961, Mocambo LP 40064)
7. Moacyr Silva from the album Samba é Bom Assim (1961, Copacabana CLP 11220)
8. Elis Regina from the album Viva a Brotolândia (1961, Continental LPP 3161)
9. Steve Bernard from the album Nunca Num Domingo (1961, Continental LPP 3165)
10. Maysa from the album Maysa, Amor… e Maysa (1961, RGE XRLP 5121)
11. Héctor Costita aka Don Júnior from the album Sambas – Don Júnior e Seu Sax Maravilhoso (1961, RGE XRLP 5131)
Art work for Sambas – Don Júnior e Seu Sax Maravilhoso by Patricio Marre
12. Cauby Peixoto from the album Cauby Canta Novos Succesos (1961, RCA Victor BBL 1123)
13. Celso Murilo from the album Sambas na Passarela (1961, Pawal P-20.002), also issued on the compilation album Samba ao Vivo credited Conjunto Balambossa (c. 1963, Coledisc CD 012)
Art work for Sambas na Passarela by Walter Pinto with photograph by Mafra
14. Carlos Lacerda from the album O Governador do Teclado Interpreta Djalma Ferreira (1961, Carroussell SELP 3007)
15. Renato de Oliveira aka Cid Gray from the album Só Samba Sabendo Sambar (1961, Continental LPP 3160)
16. Paulinho & Seus Night Boys from the album Certinho Para Dançar (1961, RCA Camden CALB 5015)
17. Erlon Chaves from the album Em Tempo de Samba (1961, RCA Victor BBL 1157)
18. Walter Wanderley from the album Samba é Samba com Walter Wanderley (1961, Odeon MOFB 3248)
19. Miltinho from the album Os Grandes Successos de Miltinho (1962, RGE XRLP 5135)
20. Zaccarias from the album Palhêtas Espetaculares (1962, RCA Victor BBL 1177)
Art work for Palhêtas Espetaculares by Studio Mafra
21. Luiz Bonfá from the album O Violão e o Samba (1962, Odeon MOFB 3295)
Art work for O Violão e o Samba by Mafra
22. Djalma Ferreira from the album Baile de Formatura (1962, Discos Drink DF-LP-13.009)
23. Pedrinho Mattar from the album Bossa Nova (1963, Farroupilha LPFR-600)
24. Turquinho from the album Samba de Bossa (1963, Chantecler CMG 2212)
25. Os Diplomatas no Samba & Paulo Roberto from the album Os Diplomatas no Samba com Paulo Roberto ao Órgão (1963, Philips P 632.148 L)
26. Joe Hammond from the album Discoteca Dançante No. 2 (1965, Fantasia FLP 2008)
27. Lenita Bruno from the album Lenita Bruno em Hollywood (1968, Fermata FB 235), with English lyrics by Ben Raleigh
Selected versions of Murmúrio originally not issued in Brazil:
1. L’Orchestre Brésilien ‘Ritmo da Bossa’ from the album Bossa Nova (1962, Barclay [France] CDF 532)
2. Lalo Schifrin from the album Piano, Strings and Bossa Nova (1962, Verve Records [USA] V6-8785)
Uncredited art work for Piano, Strings and Bossa Nova with photograph by Lee Friedlander
3. Izio Gross from the album Bossa Nova in Rhythm (c. 1963, Kristal Linea Económica Kubaney [Mexico] KS-1154)
MURMÚRIO
Vai, nessa canção • Meu último adeus • Coração, sonha em vão • Com os beijos teus • Foi essa canção que eu murmurei • Tu também longe além, murmuraste eu sei
Há nesse murmúrio uma saudade • A vontade louca de voltar • Ser como era antes, mesmo por instante • E depois morrer pra não chorar
Vai, vai nessa canção • Meu último adeus • Coração, sonha em vão • Com os beijos teus • Foi nessa canção que eu murmurei • Tu também, longe longe além • Murmuraste eu sei, murmuraste eu sei, murmuraste eu sei
MURMUR
It goes, in this song • My last goodbye • Heart dreams in vain • About your kisses • It was this song I murmured • You too, far beyond, murmured, I know
There is in this murmur a longing • The wild desire of going back • To be how it was before, even for a moment • And then die so as not to cry
It goes, goes in this song • My last goodbye • Heart dreams in vain • About your kisses • It was this song I murmured • You too, far, far beyond • Murmured, I know; murmured, I know; murmured, I know
[English translation by Maria Catarina Correa Gestinari]
Brazilliance 
“Rumour has it that the mysterious L’Orchestre Brésilien ‘Ritmo da Bossa’, releasing a jolly rendition of Murmúrio in 1962 in France, might actually be the alias of Silvio Silveira since he also recorded as Les Rhytmes Brésiliens de Silvio Silveira, Silvio Silveira et Son Grand Orchestre Brésilien and Silvio Silveira y Sus Ritmos Brasileños.”
I assume that Silvio Silveira is an alias for Sivuca and/or his band, with or without his/their consentment.
Notice that the album “Bossa Nova Ad Alta Quota” by Silvio Silveira e i Suoi Ritmi Brasiliani is actually (with the exception of 2 tracks: “Bim Bom” and “Barquinho”) the album “Bossa Nova – L’inimitable Sivuca” by Sivuca et les Rythmes brésilienes de Silvio Silveira.
Notice also that the only record (as far as I know) that mentions the members of Silvio Silvera [sic] group didn’t mention Silvio Silveira himself: https://www.discogs.com/release/4439672-Les-Rythmes-Br%C3%A9siliens-De-Silvio-Silveira-Bossa-Nova/image/SW1hZ2U6NzY1ODIxNjA=
See also this: https://medium.com/teoria-musical/o-jogo-dos-pseudonimos-cce0da7a075c
Many thanks for this attentive conclusion, with which you have most probably solved the mystery. The fact that Silvio Silveira himself is not mentioned on the cover, but that Sivuca is mentioned as organist and especially as arranger, also seems very plausible to me.