# Trombone Lessons - tonestro

> Learn to play TROMBONE, practice songs, improve rhythm & pitch. Tuner included!

Canonical page: [https://chrome-stats.com/d/com.tonestro.trombone](https://chrome-stats.com/d/com.tonestro.trombone)

## Overview

- **ID:** `com.tonestro.trombone`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** tonestro
- **Category:** EDUCATION
- **Downloads:** 316,906
- **Rating:** 4.42 / 5 (1,448 ratings)
- **Version:** 6.18
- **Last updated:** 2026-08-12
- **First published:** 2019-01-10
- **Publisher country:** AT
- **Size:** 131 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.tonestro.trombone)
- **Website:** [https://www.tonestro.com](https://www.tonestro.com/)
- **Privacy policy:** [https://tonestroauth0redirect.blob.core.windows.net/prod/privacypolicy.html](https://tonestroauth0redirect.blob.core.windows.net/prod/privacypolicy.html)

## Description

Trombone Lessons - tonestro is a comprehensive Chrome extension designed to help users learn and improve trombone skills effectively. Featuring instant live-feedback on rhythm and pitch, it supports players through detailed lessons, fingering charts, and a large library of songs suitable for all levels. The integrated tuner and metronome aid in tuning and timing, while play alongs provide engaging practice experiences.

In addition to lessons and practice tools, tonestro fosters a competitive community with weekly challenges allowing users to compete against trombone players worldwide. Whether a beginner or advanced musician, this extension provides a motivating platform to develop musical proficiency and enjoy playing trombone.

## Rankings

- #126,463 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.CREATE_USERS`
- `android.permission.INTERNET`
- `android.permission.MANAGE_USERS`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.RECORD_AUDIO`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA`
- `com.samsung.android.mapsagent.permission.READ_APP_INFO`
- `com.tonestro.trombone.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise the app for its beginner-friendly tuner and easy-to-use design, plus motivating challenges. However, many reviews flag costly premium access, limited course options, and inconsistent feedback or bugs. The app works well for learners who can afford it, but is less appealing for beginners on a tight budget or those seeking more free content.

### Pros

- Tuner/pitch feedback helps beginners learn notes and hit pitches
- Beginner-friendly and easy to use
- Engaging practice features and weekly challenges/leaderboards for motivation
- Generally positive sentiment from users who found it helpful during early learning

### Cons

- High cost and paywall to access lessons/content
- Limited course content (only a couple trombone courses) and not free
- Inaccurate or confusing pitch feedback (notes misidentified, sometimes wrong or buggy)
- Reliability issues; some users report the app not working or learning features failing
- Perceived monetization focus over learning, frustrating budget-conscious users

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.tonestro.trombone)