Following are all the sextetto like words, in the list below.
QUARTETTO
100% like sextetto
SEXTUOR
100% like sextetto
SEXTET
100% like sextetto
SESTOLET
100% like sextetto
SESTET
100% like sextetto
QUINTETTO
100% like sextetto
SEXTOLE
100% like sextetto
SESTETTO
100% like sextetto
QUATUOR
100% like sextetto
SEXTUPLET
100% like sextetto
SEPTETTE
100% like sextetto
OCTUOR
100% like sextetto
SEXT
100% like sextetto
SEPTUOR
100% like sextetto
SEPTET
100% like sextetto
SEPTOLET
100% like sextetto
SEXTOLET
100% like sextetto
QUARTOLE
100% like sextetto
QUARTET
100% like sextetto
STRING QUARTET
100% like sextetto
QUINTOLET
100% like sextetto
QUARTETTE
100% like sextetto
QUINTET
100% like sextetto
QUADRUPLET
100% like sextetto
TERZETTO
100% like sextetto
QUADRICINIUM
100% like sextetto
STRING QUINTET
100% like sextetto
QUINTETTE
100% like sextetto
QUADRICHORD
100% like sextetto
NONETTE
100% like sextetto
SEPTIMOLE
100% like sextetto
SINFONIETTA
100% like sextetto
FOURPIECE
100% like sextetto
SEPTUPLET
100% like sextetto
TERZETTA
100% like sextetto
OCTUPLET
100% like sextetto
SEMIDIAPENTE
100% like sextetto
SEPTOLE
100% like sextetto
OCTET
100% like sextetto
TERZET
100% like sextetto
QUADRILLE
100% like sextetto
SESTINA
100% like sextetto
SINFONIA
100% like sextetto
GROUP
100% like sextetto
SESQUIOCTAVE
100% like sextetto
HEXACHORD
100% like sextetto
QUINTOLE
100% like sextetto
STRING ENSEMBLE
100% like sextetto
TETRASTICH
100% like sextetto
TETRACHORD
100% like sextetto
OCTACHORD
100% like sextetto
STRING ORCHESTRA
100% like sextetto
SAX TUBA
100% like sextetto
NONET
100% like sextetto
HEPTET
100% like sextetto
SEPTENARY
100% like sextetto
SESQUIALTERA
100% like sextetto
SCETAVAJASSE
100% like sextetto
PENTATONE
100% like sextetto
PENTUPLET
100% like sextetto
TETRAPLET
100% like sextetto
SESQUITERTIA
100% like sextetto
CUARTETO
100% like sextetto
DECTET
100% like sextetto
CONCERTINO
100% like sextetto
TRIDIAPASON
100% like sextetto
QUINTUPLET
100% like sextetto
BASSETTO
100% like sextetto
SECONDO
100% like sextetto
TRIOLE
100% like sextetto
SEMSEMIA
100% like sextetto
SECTION
100% like sextetto
SEMIDIAPASON
100% like sextetto
DUODECET
100% like sextetto
SAXELLO
100% like sextetto
SAXTUBA
100% like sextetto
SYMPHONIETTE
100% like sextetto
SCETAVAIASSE
100% like sextetto
SEMIBRIEF
100% like sextetto
HEPTADECAD
100% like sextetto
ARCHICEMBALO
100% like sextetto
DIATESSARON
100% like sextetto
HEPTACHORD
100% like sextetto
MADRIGAL
100% like sextetto
TETRACHORDO
100% like sextetto
SEMIDIATESSARON
100% like sextetto
SEMICLASSIC
100% like sextetto
SEMIQUAVER
100% like sextetto
QUODLIBET
100% like sextetto
CANZONE
100% like sextetto
PENTASTICH
100% like sextetto
QUATERNARIUS
100% like sextetto
SEPTENARIUS
100% like sextetto
QUINDECIMA
100% like sextetto
SECUNDO
100% like sextetto
SYMPHONIA
100% like sextetto
ENSEMBLING
100% like sextetto
SEMICROMA
100% like sextetto
HEMITONE
100% like sextetto
CLAVECIN
100% like sextetto