All the rooms

Voice · the flagship

MercuryPitch

Find and sharpen your voice, out loud.

Pitch training, karaoke, musician practice and a community, where people find and sharpen their voice, out loud.

¹ Singing lowers cortisol and raises oxytocin: practice that doubles as feeling better.

Open mercurypitch.com About the project Read the repo report
MercuryPitch on a big screen and a phone: Piano Night, notes falling onto a lit keyboard, and First Light, asking for one sung note.
Piano Night on the big screen, First Light on a phone.

Inside the room

Seven ways in.

Every picture is the app itself, captured with demo data. Open any still full screen; the arrows walk through the rest.

Sing

Take the stage, and watch your voice.

Karaoke Night in Zen view on a theater stage: the line "Her melody rises through the room" lights up word by word with the note to sing above each word, the melody guide runs across the top, and the Key chip reads 0 beside the transport.
Karaoke Night The lyric lights up word by word on a theater stage. The Key chip beside the transport moves the song to suit your voice.
Singing practice: a pitch line climbing the C major scale note by note, with the accuracy tally and Merc beside it.
Singing practice The pitch line climbs the C major scale, and every held note gets a score.
Karaoke Night: "Your stage is set" over a spotlit stage, Violet Light loaded as tonight’s opener, three numbered steps under the headline and a side panel to add a song.
Your stage Violet Light is loaded, and three steps sit under the headline: the vocals separate, the lyrics sync, and your score climbs as you sing.

Break

Break glass with your voice.

Glass: a note held about 60 cents sharp of F sharp 4, and a new crack spreading across the upper left of the pane.
Glass Held sharp of F#4, the pane takes a new crack and its integrity falls.

Play

Three nights for three instruments.

Piano Night in the Afterglow Studio: blue and pink notes fall onto a lit keyboard, and the phrase coach beside them asks to settle the bass before the upper line enters.
Piano Night Notes fall onto a lit keyboard while the coach gives the phrase one aim: settle the bass before the upper line enters.
Guitar Night in the Velvet Rehearsal room: fret numbers ride a six-string highway down to the hit line while the Mercury Study in A minor plays at 120 BPM, Listening off.
Guitar Night Fret numbers ride a six-string highway, and a ring lights where each one meets the hit line.
Drum Night in the Pocket Console: First Pocket plays at 84 BPM in the Pocket view, hit zones glowing over a photographed kit under "Find the center. Let it move.", then in the Score view, a playhead running along two bars of percussion notation, with the phrase coach beside both.
Drum Night First Pocket plays at 84 BPM over the kit, then as notation in the Score view. The take runs 14 to 20 ms behind the beat, and the coach still calls the timing centered.

Listen

An ear you can measure.

Ear Lab’s Hairline drill in the Regulator Room: a brass loupe over a gold ruler marks the gap between two tones at 50.0 cents, and after two right answers in a row it narrows to 25.0 cents.
Hairline Two tones: pick the higher one. Two right answers in a row and the gap narrows, here from 50 to 25 cents.
The Ear Lab bench: the Mercury Index at 598 on the main dial, six faculty dials beside it.
Ear Lab The Mercury Index reads 598 on the Regulator Room bench. In September it was 540.

Together

Sing it together, from anywhere.

A Jam preview room singing Violet Light in a brick-walled rehearsal room: lines split between Ada, Bo and you, line 7 of 12 lit for you with your pitch tracing it in green, the room’s Key chip at 0 beside the transport, labeled "Preview room with demo singers".
Jam room Violet Light split between you and two demo singers, Ada and Bo, a pitch lane each and your line lit. The host’s Key chip sets the key for the whole room.

See

Your voice, next to the legends.

A Voice Mirror result: the voice twin is Elvis Presley, baritone, with accuracy 66 and steadiness 98 beside the card.
Voice Mirror The voice twin is Elvis Presley, baritone, with accuracy 66 and steadiness 98 beside the card.
The Voice Mirror start screen: "Meet your voice twin." above a Find my voice twin button, and Merc, the MercuryPitch mascot, standing in a spotlight under a starry sky.
Start screen One button in: sing a couple of short tasks, and the Voice Mirror names the legend your range lines up with.
The voice constellation: voice twins in rows by voice type, Freddie Mercury the current match, Elvis, Sinatra, Bowie and Prince before him.
Voice constellation Matches kept by voice type, from Elvis Presley in July to Freddie Mercury now.

Grow

A little each day, on a path you can see.

The Ascent: a guided path drawn as orbs climbing a night sky, three weeks lit and week four under way.
The Ascent A guided path climbing a night sky: three weeks complete, week four on day three.
Home: a 23-day streak, today’s session complete, and the Legend Attempt card for The Violet Hour with 32 days left and its board.
Home A 23-day streak, today’s session done, and a best of 84% on The Violet Hour, the current Legend.
The "Choose your next room" gallery on Home: covers for Practice Engine and Karaoke, then Piano Night and Guitar Night.
The next room Choose your next room opens on four covers: Practice Engine, Karaoke, Piano Night and Guitar Night.
Twin Trails in the Voice Atlas: two takes of one phrase on the same clock and pitch map, the earlier as a dotted teal line and the later as a solid violet one, climbing from E4 to C5 and back down to G4. The earlier take starts low and dips under the long notes the later one holds.
Twin Trails Two takes of one phrase in the Voice Atlas, on one clock and one pitch map. The earlier take starts low and dips under the long notes; the later one holds them.

In your pocket

The same rooms, in one hand.

Up close

The small things, large.

A voiceprint card: a glowing range curve, F2 to C sharp 5 over 32 semitones, baritone like Elvis Presley.
Voiceprint card The back of the card: F2 to C#5 over 32 semitones, baritone like Elvis Presley.
Guitar Night up close: fret numbers on four of the six strings, closing on the hit line.
The highway Fret numbers on four of the six strings, closing on the hit line.
A Violet Light lyric, "Her melody rises through the room", lighting up word by word, each word tagged with the note to sing.
Word by word One line of Violet Light lighting up, the note to sing above each word.
The Ear Report, opening on its index card: the Mercury Index sealed at 598 of 1000, up 58 since September 15, then two threshold traces improving and maps of the degrees, intervals, chords and contours the ear still confuses.
Ear Report The report opens on the index, 598 of 1000 and up 58 since September 15, then the thresholds and what the ear still confuses.
The badge cabinet: fifteen of nineteen medallions earned, Streak Master in gold, All Star still dark.
Badge cabinet Fifteen of nineteen badges earned: Streak Master in gold, All Star still dark.
Merc, the MercuryPitch mascot, singing along beneath the first notes of a C major scale.
Merc Merc, the MercuryPitch mascot, sings along under the first notes of a C major scale.
The theme picker: nine themes from Dark and Light to Cyberpunk and Slate, Dark selected.
Nine themes Nine themes, Dark chosen, set by hand, by the system or by the time of day.

The cards it sends ahead

Every page has a face.

When a MercuryPitch page is shared, one of these goes first. Each opens full screen, and its address goes to the page.

The MercuryPitch share card for mercurypitch.com: MercuryPitch
MercuryPitch mercurypitch.com

The art of the room

What the room dreams of.

Captured from MercuryPitch with demo data. Version 0.9.21, October 2026.

  • The voice legends are the app’s own illustrated portraits of the singers they name.
  • The art for the rooms is generated (Codex and Gemini image models) and art-directed in the studio.
The next room · II Lumen Apeiron Fractals you can play. Get lost on purpose.