Making MIDI Music with my electric piano and iPad

by Marcel Garus · 2021-12-29 · 1 minute read · available at

I've played piano for a long time, but only recently discovered that my electric piano has a MIDI port at the back! Using it is a lot of fun: By connecting the piano to my iPad, I can play music through the iPad. This allows me to change instruments, and record and arrange music.

Piano connected to the iPad via MIDI

Here's how arrangements looks like in the GarageBand app:

Screenshot of GarageBand on my iPad

Of course, some instruments (such as oboe or violin) sound bad, but percussion and plucked instruments generally have a good sampling quality.

Here is an example song making use of different keyboards, drumpads, and effects:

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By the way, I wrote other articles about interesting topics. Here's an article I recommend:

Reverse Engineering the Gira HomeServer

2021-09-12 · 8 minute read · tinkering with the Gira HomeServer

We have a pretty fancy home: There are extra wires in the walls used as a KNX bus – a system to control lights, thermostats, shades, and power outlets in our home. All devices and switches contain a microcontroller that can send and receive messages using the KNX bus wire. For example, light switches emit messages for turning a light on or off, and lamp sockets listen for those commands to turn the lamp's electricity on and off.

Compared to traditional cabling approaches, this is more flexible because switches can be added anywhere on the bus without requiring re-cabling – we could add a button that toggles lights on the other side of the house. Here's a comparison of how the cabling looks like:

Conventional multi-switch vs. bus system