Theory Lessons
Theory Lessons features 39 music theory lessons from musictheory.net; presented in their original animated versions. Complete lesson list: • The Staff; Clefs; and Ledger Lines • Note Duration • Measures and Time Signature • Rest Duration • Dots and Ties • Steps and Accidentals • Simple and Compound Meter • Odd Meter • The Major Scale • The Minor Scales • Scale Degrees • Key Signatures • Key Signature Calculation • Generic Intervals • Specific Intervals • Writing Intervals • Interval Inversion • Introduction to Chords • Triad Inversion • Seventh Chords • More Seventh Chords • Seventh Chord Inversion • Diatonic Triads • Roman Numeral Analysis: Triads • Diatonic Seventh Chords • Roman Numeral Analysis: Seventh Chords • Composing with Minor Scales • Voicing Chords • Analysis: O Canada • Nonharmonic Tones • Phrases and Cadences • Circle Progressions • Common Chord Progressions • Triads in First Inversion • Triads in Second Inversion • Analysis: Auld Lang Syne • Building Neapolitan Chords • Using Neapolitan Chords • Analysis: Moonlight Sonata
According to SubPrice AI's current price data, Theory Lessons (App Purchase) subscription prices vary significantly across 2 regions. The lowest price region is United States (¥21.71/mo), the highest is United Kingdom (¥27.48/mo), with maximum savings of 21%.
Global Price Table
App Purchase · 2 regions
| # | Region | Savings | ||
|---|---|---|---|---|
| 1 | 🇺🇸United States | $2.99USD | ¥21.71 | -21% |
| 2 | 🇬🇧United Kingdom | £2.99GBP | ¥27.48 | — |
Price Trends
* Historical data is simulated for demo purposes
Price Statistics
Plan Features
Prices are sourced from public data. Cross-region purchases carry platform policy risks. We are not responsible for purchase outcomes.
⚠️ Cross-Region Purchase Risks
Cross-region purchases may involve account region restrictions, payment verification, refund difficulties, exchange rate fluctuations, tax changes, and platform policy updates. SubPrice AI provides price information and decision support only. We do not guarantee purchase success or take responsibility for outcomes. Please research the target region's platform policies before proceeding.
Frequently Asked Questions
Which region has the cheapest Theory Lessons subscription?
According to SubPrice AI data, Theory Lessons (App Purchase) is currently cheapest in United States at approximately $2.99/month. Prices may change with exchange rates and platform policies.
How often are Theory Lessons prices updated?
SubPrice AI automatically scrapes the latest subscription prices from App Store pages across all regions daily, converting them using real-time exchange rates. Data is typically updated around 14:00 Beijing time (06:00 UTC) each day.
What are the risks of cross-region purchases?
Cross-region purchases may involve: 1) Changing your Apple ID region; 2) Needing local payment methods or gift cards; 3) Refunds may be more difficult; 4) Exchange rates may change at renewal; 5) Platforms may restrict cross-region activity. We recommend understanding these risks before proceeding.
Where does SubPrice AI get its price data?
SubPrice AI's price data comes from public App Store pages across regions. We use automated scrapers to fetch subscription prices from 20 App Store regions daily, with real-time exchange rates from Frankfurter API for conversions. All prices are tax-inclusive App Store listed prices.