The most influential German musician/band?

[Daco Celtic]

Kraftwerk, they basically created a genre of music

[Teutone]

Kraftwerk, they basically created a genre of music

Scooter is the perfection of Kraftwerk

[Ymyyakhtakh]

Monolake, because they made Ableton Live.

The two most popular DAWs were both originally made by Germans:

- "Ableton co-founders Gerhard Behles, Robert Henke, and Bernd Roggendorf developed Live from homemade software Behles and Henke had created to facilitate their live music performances as Monolake, releasing the first version of Live in 2001 as commercial software.[2][3] Ableton Live is written in C++. Live itself was not prototyped in Max, although most of the audio devices were.[4]"
- "Logic Pro is a digital audio workstation (DAW) and MIDI sequencer software application for the macOS platform. It was originally created in the early 1990s as Notator Logic, or Logic, by German software developer C-Lab which later went by Emagic. American technology company Apple acquired Emagic in 2002 and renamed Logic to Logic Pro. It is the second most popular DAW - after Ableton Live - according to a survey conducted in 2015.[3]"

Cubase is also German, FL Studio is originally from Belgium, and Reason is from Sweden. Protools and MAX/MSP are American though.

The biggest soft synth company (Native Instruments) is also German.

[Terminator98]

I don't know which one is the most influential, but my favorites are Scorpions and Rammstein without a doubt.

[The Blade]

Scorpions.

[Roy]

Kraftwerk, Einstürzende Neubauten, Boney M.

THE

SCORPIONS

Yes, but I dislike them ...

[Impaler]

Modern Talking

[KirillMazur]

Kraftwerk and Tangerine Dream - one of the pioneers of electronic music.
Rammstein - "tanz-metal".