Choir-ready ears and eyes — no piano required. Rehearse SATB repertoire, drill pitch on a live staff, and sharpen intervals and rhythm from your phone.
Rev0lut Hall is an Android app that combines a seeded repertoire library with hands-on ear training tools. Whether you sing soprano, alto, tenor, or bass, you can isolate your voice part, place notes on an interactive staff, and receive instant visual feedback — correct pitches glow teal, wrong ones flash red.
The app ships with pre-loaded music packs spanning hymns, classical motets, jazz lead sheets, and classroom warm-ups. Everything works offline once installed, so rehearsal prep does not depend on a Wi-Fi connection or a physical keyboard.
The Hall tab is your starting point for every piece in the library. Packs are organized by genre — Hymn, Classical, Jazz, and Warm-up — and can be filtered with a single tap. Each pack card shows its title, key signature, and meter so you know what you are opening before you start.
Switch between All, Hymn, Classical, Jazz, and Warm-up to narrow the catalog instantly.
Open any pack to see its subtitle, difficulty badge, voice isolation options, and linked theory cards.
Use the search button to find repertoire by title or keyword across the full library.
Mark packs as favorites directly from the Hall and access them quickly from the Library tab.
The Practice tab groups four distinct training modes under one roof. Each mode targets a different skill choir singers need daily — from locking pitch on a staff to recognizing intervals by ear.
Isolate S, A, T, or B voice parts. Drag notes on the staff, tap movable-do pads, toggle a reference drone, and see instant correct/wrong glow feedback with optional haptics.
Timed A/B ear quizzes covering intervals from minor 2nd through perfect 8th, with compound intervals unlocked as your streak grows. Adaptive difficulty keeps sessions challenging.
Tap rhythmic cells against an adjustable metronome. Mute-bar challenges test whether you can maintain the pulse when the click disappears.
Generate scales, arpeggios, and sirens on demand. Save generated warm-ups to your personal library for reuse before rehearsals.
The Studio tab is your personal rehearsal dashboard. It surfaces your latest practice session, offers a daily 60-second ear cue challenge, and gives you access to detailed results and app settings.
A daily interval challenge card links directly into Interval Dojo so you can lock a target interval — such as a perfect fifth — in under a minute.
Review saved session results with per-bar heatmaps showing where pitch accuracy was strongest and where you missed most often. Retry weak sections with one tap.
Configure concert pitch (A=440 or A=442), default clef (treble or bass), color-blind staff palette, and haptic feedback on pitch lock.
Heatmap bars visualize accuracy across each measure, making it easy to spot patterns — maybe bar 7 always trips your alto section, or the final cadence needs another pass. Session history persists locally on your device.
The Library tab connects ear training to music theory and helps you plan rehearsals. Theory cards explain concepts tied to specific repertoire packs. Your favorites collection and custom setlist builder keep everything organized for the next choir session.
Building a setlist shows the item count and approximate duration in minutes, so section leaders can plan warm-up time, full run-throughs, or focused drills on specific pieces without mental arithmetic.
Rev0lut Hall adapts to how you read music and how your ensemble tunes. All preferences are stored locally on your device.
Choose A=440 Hz or A=442 Hz to match your choir's tuning standard.
Set treble or bass as the default clef for Pitch Bench sessions.
Enable the color-blind staff palette for high-contrast correct/wrong indicators.
Toggle vibration feedback when you lock a pitch correctly on the staff.
An optional Glance home-screen widget displays today's 60-second interval ear cue, so you can start a quick drill without opening the full app.
If you encounter a problem, have a feature suggestion, or need help using any part of Rev0lut Hall, our support team is ready to assist. When reaching out, please include your Android version and a brief description of the issue — this helps us resolve requests faster.
We typically respond within 1–2 business days. For account-related or data-deletion requests, refer to our Privacy Policy page.
Developer: Sokol_Maksym
Email us with questions, bug reports, or feedback:
lashandashecklerzd0132@gmail.com