FIELD GUIDE / AZION LABS
A practical guide to AI music creation on iPhone
SESTO brings an initial musical idea, generation, playback and a personal library into a native iPhone studio. This guide explains how to write a useful brief and judge the result before organizing a track.
By AZION LabsUpdated:
Who this is forCreators exploring musical ideas, Arabic and Saudi sound directions, and mobile production workflows.
Start with the musical brief
Describe the mood, instrumentation, rhythmic character and intended setting. Separate essential qualities from experiments. A quiet background cue and a prominent opening theme need different listening criteria, even when they share instruments. Change one part of the brief at a time so that you can understand which choice shaped the next version.
Source:Generate music with Lyria
Listen before you label
Review the complete track for a coherent opening, development and ending. Note whether the sound matches the brief, whether transitions feel intentional and whether the result fits its intended context. Titles, artwork and playlists help organize decisions; they do not establish audio quality. Keep the most useful versions together with their creative intent.
Read music-market data in context
IFPI reports global recorded-music revenue of US$31.7 billion in 2025. The regional chart describes revenue growth across that industry. It is useful background for understanding the distribution landscape; it does not measure demand for AI-generated music, creator income or SESTO performance. Listening, generation and commercial distribution are distinct activities.
Workflow
From idea to an organized track
- 01 →
Describe
Choose mood, instruments and purpose.
- 02 →
Generate
Create a candidate from the brief.
- 03 →
Review
Listen throughout and compare with the brief.
- 04 →
Organize
Name and group the versions worth keeping.
A suggested creative process; generation quality varies by prompt and model.
Decision guide
What to review at each stage
| Stage | Useful input | Review question |
|---|---|---|
| Brief | Mood and setting | Is the intent specific? |
| Sound | Instruments and rhythm | Does the result fit? |
| Structure | Complete playback | Do transitions work? |
| Library | Title and collection | Can you find it again? |
Editorial listening criteria, not measured product scores.
Metrics explained
- Tempo
- The pace of the pulse, commonly expressed in beats per minute.
- Duration
- Playback length; different from generation waiting time.
- Prompt version
- The specific creative instructions used for a candidate.
- Revenue growth
- Percentage change in industry revenue over the previous year.
Data & charts
How to read these figures
Every chart identifies its period, unit, and source. Published market data describes its stated market; product inventories describe features or catalog entries. Neither is a measurement of customer results.
Recorded-music revenue growth by region
Published industry context from IFPI’s Global Music Report 2026.
% year over year
Scale starts at zero
Industry revenue growth, not market share or SESTO results. IFPI restates historic values at the report’s exchange rates.
Source:Global Music Report 2026: industry results
View the data table
| Category | Value |
|---|---|
| USA & Canada | 3.5 |
| Europe | 5.6 |
| Asia | 10.9 |
| Latin America | 17.1 |
| Australasia | 1.5 |
| Middle East & North Africa | 15.2 |
| Sub-Saharan Africa | 15.2 |
Questions, answered
What is SESTO?
A native iOS studio for music ideas, generation, playback and library organization.
Which music engine does the project use?
The documented project integrates Google Lyria through a cloud proxy.
Does the chart describe SESTO users?
No. It describes regional recorded-music industry revenue growth in 2025.
How should I compare generated versions?
Use the same brief and listening criteria, and record what changed between versions.
References & further reading
- 01Global Music Report 2026: industry results ↗
IFPI
Primary industry release, 18 March 2026; calendar-year 2025 revenue.
- 02Generate music with Lyria ↗
Google Cloud
Provider documentation for music generation; available features vary by model version.