A fashionable part of the blues
I am whatever you don't choose
I start with an R
My messages go far
But maybe just after this snooze.
What am I?
A fashionable part of the blues
I am whatever you don't choose
I start with an R
My messages go far
But maybe just after this snooze.
What am I?
You are
A rest
A fashionable part of the blues
A "rest" is a musical term (it basically means "don't play for X beats"). As pointed out in the comments, rests are the key to the syncopation that makes jazz/blues music sound cool.
I am whatever you don't choose
That's "the rest"
I start with an "R"
Yep!
My messages go far
"REST" is an architectural style for creating and linking web services
But maybe just after this snooze
A "rest" can mean a brief sleep
Are you:
Reject?
A fashionable part of the blues
Many Blues songs are about rejection.
I am whatever you don't choose
What you don't choose, you reject.
I start with an R
Reject starts with an R!
My messages go far
You can reject a telephone call with a message. Or it might refer to rejected email messages which do seem to bounce around all kinds of servers before you get them back.
But maybe just after this snooze.
'Snooze' is a way of rejecting an alarm.
It could be:
Rhythm.
A fashionable part of the blues
Rhythm is used in blues a lot
I am whatever you don't choose
You can find rhythm without thinking
I start with an R
Rhythm
My messages go far
Rhythm sends a message in the form of a song
But maybe just after this snooze.
Might just be a line to make it a limerick
Are you
A refrain
A fashionable part of the blues
A musical refrain, i.e. the chorus
I am whatever you don't choose
To refrain from, to not choose to do something
I start with an R
Yep
My messages go far
most song's refrains convey a message, concept or idea
But maybe just after this snooze.
refrain can mean to sit out or decline to participate
Could you be
Area?
A fashionable part of the blues
Area is a fashionable part of Pablo Picasso's Blue Period, as he painted many blue paintings in his time (which required area to paint on). Also, painting is a form of art, and the word area is part of the word art in terms of spelling.
I am whatever you don't choose
When you don't choose to do something, it leaves room for you to choose something else. (e.g. "room for improvement".) Room $\to$ area.
I start with an R
R $\to$ are and area begins with "are".
My messages go far
You would have to be quite far up in the sky to read messages that use a huge amount of area of land (e.g. "SOS").
But maybe just after this snooze.
Areas of your brain require rest, especially to read and write (messages).
How about:
Radio
A fashionable part of the blues
Where's the hippest source of blues? Radio was integral to spreading and popularizing the blues from the rural Southern states to the urban North
I am whatever you don't choose
How much choice do you have over a DJ's playlist?
I start with an R
like Radio
My messages go far
Longwave radiation!
But maybe just after this snooze.
Good morning radio alarm, reach out and hit the snooze for another 10 Zzzzs