# SUS4 Backing Tracks

> Jam tracks for every key.

Canonical page: [https://chrome-stats.com/d/id6777230344](https://chrome-stats.com/d/id6777230344)

## Overview

- **ID:** `id6777230344`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** ThePaulSmith
- **Category:** Music
- **Version:** 1.1.1
- **Last updated:** 2026-08-28
- **First published:** 2026-06-17
- **Size:** 30 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/sus4-backing-tracks/id6777230344)
- **Website:** [https://4chords.studio](https://4chords.studio/)
- **Privacy policy:** [https://4chords.studio/privacy](https://4chords.studio/privacy)

## Description

A band in your pocket. Ready to jam.

SUS4 Backing Tracks gives you jam tracks for every key, every common style — the kind of tracks that make practice feel like a real musical situation rather than an exercise. Transpose to any key, shift the tempo up or down without pitch change, and loop a section to drill a particular passage as many times as you need.

Stem isolation lets you pull individual elements of the backing — take out the bass to work on your bass lines, isolate the chords to practice improvising over them without distraction. Play along, capture the session directly in-app, and review it afterwards.

• Jam tracks for every key and common styles
• Transpose to any key with pitch-accurate playback
• Tempo shift without pitch change
• Loop sections for focused repetition
• Stem isolation — remove or isolate individual instruments
• Subscribe monthly, or unlock the full SUS4 suite forever: 40+ tracks, stem isolation, transpose, tempo shift, and looping

All audio runs on-device. No internet required during practice.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #1,968,708 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6777230344)