The Altus 907E occupies a sweet spot in the professional market, blending legendary Azumino craftsmanship with a focus on immediate response. The centerpiece is undoubtedly the Z-cut headjoint; its more rectangular embouchure hole provides a quickness of articulation and a 'crispness' that allows for effortless transitions between registers. While some flutists find traditional oval cuts more resistant, the 907E invites a more direct, vibrant airflow that excels in technical passages.

Sonically, it carries the signature Altus 'shimmer'"a colorful, brilliant core that doesn't sacrifice warmth. The integration of the Altus-Bennett scale is a game-changer for intonation, particularly in the notoriously finicky third octave, which feels remarkably stable here. The mechanism is buttery and precise, utilizing stainless steel springs that offer a snappy, reliable return.

While it lacks the sheer 'weight' and dark complexity of the higher-numbered all-silver models, this actually makes the 907E feel more nimble and less fatiguing for long orchestral rehearsals. It is an exceptional choice for the conservatory student or the gigging professional who demands a world-class headjoint paired with a rugged, high-performance body. At this price point, you are paying for the precision of the scale and the hand-finished headjoint, both of which punch well above their weight.

The Altus 907E represents the pinnacle of Japanese flute-making artistry, and its reputation among professional flutists is richly deserved. The all-sterling-silver construction produces a tonal character that is distinctly warm, dark, and complex -- characteristics that set Altus apart from the brighter voicings favored by many European makers. This warmth is not at the expense of projection; the 907E fills a concert hall with a round, singing tone that carries beautifully over an orchestra. The Z-cut headjoint is the heart of the instrument's responsiveness, providing an embouchure configuration that gives the player remarkable control over color, dynamics, and articulation. Pianissimo passages speak with ease, and fortissimo playing maintains tonal integrity without breaking or spreading. The key mechanism is exceptionally refined -- the action is light, fast, and virtually silent, which matters enormously during rapid passage work and quiet moments where mechanical noise would be audible. Intonation is centered and predictable across all three registers, reducing the amount of constant embouchure adjustment that less refined instruments demand. The handcrafted precision from Altus's workshop in Azumino reflects decades of dedicated craftsmanship. For professional orchestral players, soloists, and advanced university students who gravitate toward a darker, more complex tonal palette, the 907E is one of the finest instruments available. Players seeking a brighter, more brilliant sound for commercial or studio applications may prefer instruments with a different voicing philosophy.