Note Pierce — Ear Training: Intervals, Chords, Scales, Progressions, Rhythm
Chrome extension by Crescendo Companion · Productivity · Tools
- Established publisher
- Trader
A Chrome extension in Productivity · Tools with 26 users, barely installed. Audience over the last 30 days: +17.
Specific sites only: 1 match pattern.
What the developer says, and 5 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 26
- Users, last 30 days
- +17
- Version
- 1.0.2
- Updated in the store
- 2026-10-24
- Published
- 2026-08-26
- Manifest
- V3
- Browser access
- 6 permissions, 1 site pattern
How it has moved
- 2026-10-048
- 2026-10-089
- 2026-10-0910
- 2026-10-1612
- 2026-10-1713
- 2026-10-1812
- 2026-10-1915
- 2026-10-2117
- 2026-10-2214
- 2026-10-2315
- 2026-10-2417gained the good publisher record badge
- 2026-10-2922
- 2026-10-3123
- 2026-11-0126
- 2026-08-314
- 2026-09-027
- 2026-09-046
- 2026-09-067
- 2026-09-076
- 2026-09-105
- 2026-09-158
- 2026-09-219
- 2026-09-228
- 2026-09-2610
- 2026-09-289
- 2026-10-048
- 2026-10-089
- 2026-10-0910
- 2026-10-1612
- 2026-10-1713
- 2026-10-1812
- 2026-10-1915
- 2026-10-2117
- 2026-10-2214
- 2026-10-2315
- 2026-10-2417gained the good publisher record badge
- 2026-10-2922
- 2026-10-3123
- 2026-11-0126
A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.
What it can reach
Specific sites only: 1 match pattern.
https://extensionpay.com/*
-
Run its own code on the pages it can access
scripting -
Schedule work to run later
alarms -
Show you notifications
notifications
Show the remaining 3
-
Open a panel beside the page
sidePanel -
Store data in your browser
storage -
Store data in your browser without the usual size limit
unlimitedStorage
Version history
- Version 1.0.2
What changed recently
- Gained the Established publisher badge
- Store description rewritten
- Released version 1.0.2 (was 1.0.0)
The publisher
Crescendo Companion publishes 2 listings we track, 310 users between them. Listed website: crescendocompanion.cc.
Like this one
Listings the catalog judges closest in what they say they do.
-
Ear Training With Harmon-EZ 31 users
-
Toned Ear: Ear Training 1k users
-
Etudely — Music Practice Player 3 users
-
cadenzo 4 users
-
earTastic 130 users
The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.
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Add a badge to your README or site
The badge shows the audience and rating from our last pass over the store and links back to this page.
[](https://extops.dev/extensions/pkfefhdgpfjecbggohbnndeddhcmidcj)<a href="https://extops.dev/extensions/pkfefhdgpfjecbggohbnndeddhcmidcj"><img src="https://extops.dev/extensions/pkfefhdgpfjecbggohbnndeddhcmidcj/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.