Airto Moreira

Rasteirinha (often called “funk rasteirinha”) is a mid‑tempo branch of Brazilian funk that slows the classic baile funk groove to a warmer, more sensual pace. It blends the dembow swing of dancehall and reggaeton with samba and pagode percussion (pandeiro, cuíca, surdo, agogô, tamborim, and shakers), typically sitting around 90–105 BPM. Vocals tend to be chant‑like, playful, and street‑wise, with hooks built from call‑and‑response phrases and chopped vocal shots. Harmony is minimal—often one to three chords—so that the syncopated drums and round sub‑bass can drive the dancefloor. The overall feel is percussive, tropical, and intimate—made for block parties and clubs where groove and swing matter more than dense arrangements.

Contemporary jazz is an umbrella term for post-1970 jazz that absorbs advances from post‑bop, fusion, free jazz, modern classical, and global traditions while retaining the core values of improvisation and interaction. It favors a flexible rhythmic feel (from straight‑8 to polyrhythms), modal and post‑tonal harmony, and a producer’s ear for space, texture, and sound design. Unlike earlier era labels tied to a single movement, contemporary jazz denotes a living, evolving practice. It ranges from intimate acoustic trios to electronics‑enhanced ensembles, often using odd meters, ambient timbres, and song forms that move beyond the 32‑bar standard. The result is a wide spectrum—from lyrical, ECM‑influenced spaciousness to groove‑forward, rhythmically intricate music influenced by funk and world traditions.

Jazz fusion (often simply called "fusion") blends the improvisational language and harmonic richness of jazz with the amplified instruments, grooves, and song forms of rock, funk, and R&B. It typically features electric guitars, electric bass or fretless bass, Rhodes electric piano, clavinet, analog and digital synthesizers, and a drum kit playing backbeat- and syncopation-heavy patterns. Hallmarks include extended chords and modal harmony, complex and shifting meters, brisk unison lines, virtuosic improvisation, and a production aesthetic that embraces effects processing and studio craft. The style ranges from fiery, aggressive workouts to polished, atmospheric textures, often within the same piece. Emerging in the late 1960s and flourishing through the 1970s, jazz fusion became a bridge between jazz audiences and rock/funk listeners, shaping later styles such as jazz-funk, smooth jazz, nu jazz, and parts of progressive and technical rock/metal.

Samba‑jazz is a Brazilian small‑combo style that fuses the propulsive, syncopated rhythms of samba with the harmony, form, and improvisational language of modern jazz (especially hard bop and cool jazz). It is typically more energetic and instrumental than bossa nova, emphasizing virtuosic interaction in piano‑trio and quartet/quintet settings. The drumming concept—pioneered by Edison Machado and others—moves the samba pulse to the ride cymbal and hi‑hat ("samba no prato"), while the bass suggests surdo patterns and the piano/guitar supplies rich jazz voicings. Heads are often concise, followed by swinging, straight‑eighth samba grooves under extended improvisations, and a tight return to the theme.

Bossa nova is a Brazilian popular music style that emerged in Rio de Janeiro in the late 1950s, blending samba’s syncopated pulse with the harmonic sophistication and understated cool of jazz. It is characterized by intimate, almost whispered vocals; a nylon‑string guitar playing the distinctive batida (a gently syncopated, two-beat accompaniment); subtle, brushed percussion; and lush, extended jazz harmonies. The mood is relaxed, refined, and full of saudade—a bittersweet sense of longing—often evoking images of Rio’s beaches, nightclubs, and urban modernity.

Brazilian jazz is the meeting point of Brazilian popular music and North American jazz, blending samba and bossa nova rhythms with jazz harmony, improvisation, and ensemble interaction. The style typically features syncopated Brazilian grooves (samba, bossa, partido‑alto) under extended jazz chord voicings and lyrical melodies. Acoustic guitar or piano often supplies a gently propulsive, off‑beat rhythmic bed, while bass and drums translate samba’s surdo and pandeiro patterns to the jazz rhythm section. Timbres range from intimate (nylon‑string guitar, brushed drum kit, flute) to expansive (full percussion batteries, horns, and electric keys). The overall feel can be both laid‑back and danceable—romantic yet harmonically sophisticated.