Ondes
Recording Unique Instruments
Synth
Electronic Music Recording
Synthesizer
Recording Unique Instruments 
Didgeridoo Hang Drum Saw Electronic Instruments Theremin
Ondes Martenot Modular Synthesizers Custom-built Instruments Prepared Piano Waterphone Hybrid Instruments
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Synth 
in the evolution of synthesizers include: 1920s: The first electronic musical instruments, such as the Theremin and
Ondes Martenot, were developed
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Electronic Music Recording 
Key milestones include: 1920s: The first electronic musical instruments, such as the Theremin and
Ondes Martenot, were developed
...
Synthesizer 
1930s: The
Ondes Martenot, an early electronic instrument, gained popularity for its unique sound
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Mit den besten Ideen nebenberuflich selbstständig machen
Der Trend bei der Selbständigkeit ist auf gute Ideen zu setzen und dabei vieleich auch noch nebenberuflich zu starten - am besten mit einem guten Konzept ...