Official store of a German virtual instrument brand selling orchestral and experimental sample libraries that run in its own SINE Player; users buy the sounds to compose and score in their DAW.
German composerOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout: checkout.stripe.com
“'Download for free' / 'Get free instruments' (SINEfactory, FFOSSO) not tied to referral or sharing”Quote from the site
New-user source: SEO (Non-brand search). Direct 55.3%, organic search 36.9%; non-brand search among new users is about 22.1%, concentrated on free-instrument queries like "sine player", "berlin free orchestra", "free church organ vst"; referrals from leo-brennauer.com 2.99%, audiopluginsforfree.com 2.14%, infinity.audio 2.08%; social 3.6% (YouTube, Reddit). Existing users return via brand keywords and direct visits; email about 2%.
Semrush source breakdown (desktop)
| Attributable new users, last month | Share |
|---|---|
| SEO | 22% |
| 4% | |
| Other | 74% |
Direct + brand search 70%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 24.69% |
| Brazil | 9.82% |
| Taiwan | 5.31% |
| China | 4.61% |
| Canada | 4.06% |
Countries (Semrush): United States 24.1%, Italy 8.0%, China 7.7%, Japan 5.8%, United Kingdom 5.0%
Mainly English
YouTube, Reddit, Telegram Webapp; Messaging: Telegram
| Source | Share |
|---|---|
| ChatGPT | 0.42 |
| Gemini | 0.07 |
AI referrals (Semrush): ChatGPT 627 (0.42%), Gemini 97 (0.07%)
922 keywords · brand ~70% · organic 98.2% / paid 1.8%
| Similarweb top 5 keywords |
|---|
| orchestral tools |
| sine player |
| sineplayer |
| berlin free orchestra |
| free church organ vst |
Non-brand queries: sine player, sineplayer, free church organ vst
14 referring sites
| Site | Share of referrals |
|---|---|
| leo-brennauer.com | 2.99% |
| audiopluginsforfree.com | 2.14% |
| infinity.audio | 2.08% |
| Category | Share of referrals |
|---|---|
| Music | 32.6% |
| Graphics Multimedia and Web Design | 21.57% |
| Video Games Consoles and Accessories | 1.2% |
| Computers Electronics and Technology - Other | 0.32% |
About 8,596 last month (Similarweb estimate), #383 of 606; the month before was 17,813. Opening checkout is not paying, so this is not revenue.
New-user source: SEO (Non-brand search). New users mostly come from need-based searches Direct 55.3%, organic search 36.9%; non-brand search among new users is about 22.1%, concentrated on free-instrument queries like "sine player", "berlin free orchestra", "free church organ vst"; referrals from leo-brennauer.com 2.99%, audiopluginsforfree.com 2.14%, infinity.audio 2.08%; social 3.6% (YouTube, Reddit). Existing users return via brand keywords and direct visits; email about 2%.
Libraries sold individually; the homepage and store pages show no prices; 40% discount for students and teachers; free instruments available
Dossier confidence: medium. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.
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