It depends on which synthesizers you are talking about, but the overarching answer would be electronic.
In general though, too many different answers exist to make it that simple. Moog makes several guitar-oriented synths to be used as effect pedals, as well as many keyboard-style synths. All are analog (even though synthesizers are generally electronic instruments, analog synths are still part of the 'electronic' family).
Many different synthesizer controllers exist for MIDI software sounds. Most are in the shape of a piano keyboard (leading to the simple term of 'keyboard', but this is wrong), but they also exist in the shape of violens, Guitars, flutes, and even Bagpipes.
The reason, however, that despite the existence of analog synths they still fall under the category of 'electronic' is because even analog synthesizers are technically electronic, the modern mind just confuses 'electronic' with 'digital', and analog synths use oscillators and other components to electronically alter the input waveform (or create one), and MIDI controllers send a digital signal to an electronic software program to create sound.
They are 'instrumental' in the production of digital or electronic music. There may be other terms used for this broad category of instrument that now includes very good quality digital pianos, drum sets, and many others that reproduce the sounds of acoustic instruments. Synthesizers can produce endless varieties of sounds and effects that are not and cannot be duplicated in the acoustic world.
The didgeridoo is an indigenous Australian instruments that is not formally categorised with any other family of instruments. At best, it would be considered to belong to the wind family.
The string family instruments and is the subset of the guitar family or a plucked lute.
either woodwind or brass
If you mean what family of instruments, it's in the brass family. It is in the family of 'wind' instruments. I play one myself! Great instrument!
Chimes are percussion instruments.
Many instruments belong to the percussion family. For example, drums of all sorts are members of the percussion family. Also, rattles are considered percussion instruments.
Percussion
string
electronic
The didgeridoo is an indigenous Australian instruments that is not formally categorised with any other family of instruments. At best, it would be considered to belong to the wind family.
Maracas belong to the percussion family of instruments.
The string family instruments and is the subset of the guitar family or a plucked lute.
If you mean what family of instruments, it's in the brass family. It is in the family of 'wind' instruments. I play one myself! Great instrument!
either woodwind or brass
He used a synthesizer or his songs.
If you mean what family of instruments, it's in the brass family. It is in the family of 'wind' instruments. I play one myself! Great instrument!
Chimes are percussion instruments.