GalileoTuner vs Cantus

Galileo is a music tuner. Earth mode shows the pitch by chromatic scale in circle.(Please set the microphone on). Jupiter mode shows detailed pitch in smaller circle. When the red mark in the opposite side of "50" aligns with the red arrow bellow the smaller circle, it produces equal temperament pitch. The two smaller red marks on both side of the red mark shows just intonation of major 3rd (-) and minor 3rd (+). ※For monophonic instrument

Cantus - Voicing Lab is an interactive harmony and chord-voicing tool by Nathaniel School of Music for pianists, composers, producers, and music theory students. Explore how notes move inside chords, hear voicings in context, and study color, tension, and modal relationships from the keyboard. Cantus is designed as a focused practice lab: pick a sound, inspect the voice leading, and build intuition for how harmony feels under your hands. FEATURES * Interactive chord and voicing explorer * Piano keyboard visualization * Modal and scale-based harmony practice * Voice-leading movement and pinboard-style comparison * Tone.js audio playback * Self-hosted fonts and bundled web assets * Works without an account BY NATHANIEL SCHOOL OF MUSIC Built for practical harmony learning, composition practice, and deeper chord fluency.