#hot111 Bot Machine Room Inside

kusBlog, News, Technology

You might be wondering how our bot is creating the #hot111 charts. Here are some simplified insights.

Every Sunday our bot runs on our test system and generates the charts. We manually check the results for spam, statistic cheaters and errors.

Every Monday our bot runs in production. It takes 31 steps, here’s the simplified breakdown to thirteen. The whole generation takes around two hours.

Step one

It catches all Creative Commons licensed tracks via APIs from Jamendo, Soundcloud, Free Music Archive and Archive.org and writes the data to our database. That’s 50’000 tracks.

Step two

It filters out all Creative Commons NC and ND tracks and filters all BY and BY-SA.

Step three

The APIs have some glitches. It deletes all duplicates.

Step four

It generates the first basic HotRank and HotHotHotRank.

Step five

It marks all spam tracks and statistic cheaters and applies the Black and Whitelist.

Step six

It generates the Hotrank and HotHotHotRank one more time in depth.

Step seven

It purges all not popular, not relevant tracks. 1000 tracks left.

Step eight

It gets the metadata via APIs from Facebook, Last.fm and YouTube.

Step nine

It maps the subgenres to main genres.

Step ten

It fixes the SoundCloud stats.

Step eleven

It generates the HotRank and HotHotHotRank one last time.

Step twelve

It generates and caches the genre tag cloud.

Step thirteen

It generates the sitemaps for the search engines.


There are more steps necessary like regularly keeping the tracks up-to-date and ensure, that deleted tracks on SoundCloud are also deleted in our database. It regularly checks for new YouTube videos. It ensures that bot traffic doesn’t influence the internal stats and it hourly recalculates the HotHotHotRank.

The #hot111 is open source, built with the Symfony framework run on a LEMP stack and you can contribute on GitHub. Get in touch, if you are interested.

Origami FKK – Call for Summer Hits 2019

kusBlog, Creative Commons, Fun, News

What will be the summer hit 2019? We are already interested in no other question. We are looking for your track: Pure, naked, nature & foldable. Summertime and the living is easy!

The best 4-6 will be included in the album Origami FKK. The album is featured on starfrosch.com. All entries must be under free licenses (CC-BY-SA or CC-PD) or distributed in the public domain. Upload on Dock18.ch until 31.November 2018. The 4-6 winners will get 250 CHF, thats around 250 $ each.

Suggestions for the Album Cover (square format) can be uploaded with pleasure in the jpg format. Release Party is naked (or dressed) with the whole family on the nudist beach of the Rote Fabrik ZΓΌrich as soon as summer comes.

Shoutout to Breitband on Deutschlandfunk Kultur

kusBlog, by, Creative Commons, Electronic, Free MP3 Download, News, Podcast

Shoutout to Deutschlandradio Deutschlandfunk Kultur for playing starfrosch Future Trap with Sub on their Breitband show.

Download MP3

Download WAV

The starfrosch #hot111 is nominated for the DINAcon Award

kusBlog, Creative Commons, News

The starfrosch #hot111 is nominated for the DINAcon 2018 award. The other nominies are pretty funky too, so check them out.

DINAcon is the Swiss conference on digital sustainability and is taking place on Friday, 19 October 2018 at Welle 7 in Bern.

Get your tickets here and join Chrigu and Kus for a talk, we’re glad to see you.

Thomas from cctrax.com needs your help

kusBlog, Creative Commons, Free MP3 Download, News

This morning, when I asked Thomas from the Creative Commons platform cctrax.com in Vietnam how he’s doing, he told me a story I couldn’t listen to without taking action.

Some burglars broke into his house and stole everything he needs for life. His IT equipment he uses to create web applications and tools to create handcrafted wooden furnitures he sells have been stolen. He’s broke, has no insurance and no more livelihood.

Please help him get back on track. starfrosch donated 500$, plus we will send him an older Laptop we no longer need. But that’s not enough.

Please donate too and spread the message. It’s a friend in need and I believe this is a community for free music who cares.


Here’s his original message

Let me explain.
It’s been five years now that I provide the service of curating Creative Commons music and a comfortable free stream/download function. This site gives exposure to artists that do outstanding work and it currently attracts roughly 50k visitors/month. It’s fun doing the site and I’m happy to spend time and money to support the Creative Commons idea. I never considered placing a donation button somewhere.

But as we know – shit happens.

I make a living by creating things. I have a small workshop where I do handcrafted wooden furnitures that I try to sell. I do websites for small business owners, start-ups and the like. Some djing too. Just enough to make ends meet.
Things changed dramatically yesterday night when burglars managed to get in my house. The list of things they stole is rather long and depressing. In short, they took what’s portable. My wood working tools (all of them), my laptop, hard drive, a phone and so on. Basically all stuff that’s crucial to make a living. Did I lock my house? You bet. Does my insurance cover for it? No. Police? Funny idea.

Back to square one.

I’m typing this on an eight years old laptop with a broken keyboard, even the burglars skipped it.

Why should that bother you?

Well, you came here looking for free music. Momentarily it doesn’t look like I can update/maintain the site. Remember, no laptop. Furthermore I have to focus on getting my tools replaced which, of course, has top priority. Tough times ahead of me.

Now here’s the thing:

I’m kindly asking for donations that help me to get back on track. Please do if you can afford drinking less and donating a few bucks instead.


or contact me on twitter @deeload if you have questions or a better idea.

thanks for reading,