Reddit reviews Korg, 25-Key Midi Controller (NANOKEY2BK),Black

I love to use my korg nanokey, even when I'm at home. That would probably be ideal for an airplane or car.

KORG nanokey2...I got it for $50 and I love it.

https://www.amazon.com/Korg-nanoKEY2-Slim-Line-Keyboard-Black/dp/B004M8UZG0/ref=sr_1_1?ie=UTF8&qid=1496553850&sr=8-1&keywords=korg+nanokey2

Here are your best budget options of gear you must have:

Headphones -

[Audio Technica M50] (http://www.amazon.com/gp/product/B00HVLUR86/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00HVLUR86&linkCode=as2&tag=silastu-20&linkId=KJN5X2ZF3TL466SZ)

Sony MDR7

Monitors -

KRK RP5G3

M-Audio AV40

MIDI Keyboard -

Akai MPK Mini

Korg nanokey

Novation Launchkey

Moar Buttons & Knobs -

Korg nanocontrol

Korg nanopad

Microphones -

Shure SM58

Shure SM57

Recording Interface -

Focusrite Scarlett 2i2

PreSonus Audiobox

That's a pretty good setup - those little Focusrites are surprisingly good interfaces. What are you looking to record (music, voice overs, etc.)? What DAW will you be using? Do you plan on recording instrumentation of any kind?

My only other thought is research - learn a little about noise cancellation, basic EQ'ing, etc. Some form of midi controller could also turn out to be handy in the near future.

Maybe something like this for on-the-go purposes. Probably great for melodies, not so much for chords

http://www.amazon.com/Korg-nanoKEY2-Slim-Line-Keyboard-Black/dp/B004M8UZG0/ref=sr_1_5?s=musical-instruments&ie=UTF8&qid=1420928192&sr=1-5&keywords=midi+keyboard

Took me awhile but I've found 3 different midi keyboards id recommend depending on what you need.

Korg nanokey - This one's solid for traveling or if you have a more mobile setup. https://www.amazon.com/dp/B004M8UZG0/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=BHFPSURENR6T&coliid=I2GZUV8FTNZIPC&psc=1

Alesis V49 - This is the one I'm currently using. I like it because its semi-weighted and fits perfectly with my desktop setup. And if you wanted drum pads but don't want to shell out the money for novation launchpad, these get the job done but certainly aren't the best. I'd highly recommend it though if you want a weighted MIDI keyboard that doesn't take up much space. https://www.amazon.com/gp/product/B00IWWEW20/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

M-audio 88 key - If you want a full keyboard this one's very good. No drum pads but semi-weighted and if you want a full-sized keyboard its very good for the price.
https://www.amazon.com/M-Audio-Keystation-Keyboard-Controller-Semi-Weighted/dp/B0006676A0/ref=sr_1_3?s=musical-instruments&ie=UTF8&qid=1493660753&sr=1-3&keywords=maudio+88+key

Something like this will do https://www.amazon.com/Korg-nanoKEY2-Slim-Line-Keyboard-Black/dp/B004M8UZG0/ref=sr_1_9?ie=UTF8&qid=1496850568&sr=8-9&keywords=korg+microkey

This is a futile effort. It is recommended that you use a USB midi device to efficiently transfer midi data. There are tons of inexpensive devices available on the market. Here’s an example Korg NanoKEY

From the looks of it you could use a very basic midi keyboard. Here is the MIDI set up video for MuseScore. It all depends on your budget and how much playabilty you need/want.

For cheap go second hand, I have an Arturia Analog Factory Experience that I got for $50AUD with a bunch of software. There are also controllers like this one from Korg, the nanokey2 which might be alright.

I have no idea about your second question.

For the guitar question are you looking for something like Amp sims such as Guitar Rig or Amplitube? For these you need a DAW (digital audio workstation) such as Pro Tools, Logic or Reaper. Sorry if this is shit you already know.