Functions of Keyboards

Solo keyboard performance -The role of a solo keyboard performance is that you are playing by yourself infront of a audience or a teache, this could be for either an assessment, if you're playing front of a teacher or you could be at a mini concert that you are performing at. In a solo keyboard performance, you would might have to play a piece - but you would have to play it correctly. Sometimes you would get assessed depending if it's a real performance or a practise one. When it comes to solo performances, you would have to organise practise times yourself and practise in your own time. You will not have any one but yourself, so you have to count on yourself to make the commitment. When you are doing a solo performance, sometimes you would have to dress appropriately, this is because people would know that you're taking your performance seriously, also when doing a solo performance you would have to keep your back straight at all times... but sometimes this isn't a case.

Live performance keyboard (band) - The main functions of a live performance (keyboard) is that you would be playing the main melody/chords throughout the whole song... the keyboard player would have to keep in time with the drums, this is one of the main instruments that keps in time with the whole band.

The role of a live keyboard player is that, you would have to play in a band. This means that you would have to make a commitment by attending rehearsals and practising a lot with your band. One of your band member's would have to book rehearsal time (unless they have a room, that they could rehearse in). For a band performance you need to be playing the piece that your band mates tells you to, you can't play whatever you like (unless you are improvising and it goes well with the song)... this is because if you're playing something different, then it would mess up your whole band.

Midi keyboard - Midi stands for Musical instrument digital interface. For this type of keyboard, you play the notes and then you record it on to logic via the region. Using this midi keyboard you have to import date to logic, how to do this is that you record yourself playing and it would come on logic as little shapes , after your done recording - it would then show a box, of what you recorded. Not only you could record using a piano, you can use a variety of instruments, to make your track more creative, you can also add in a drum beat. In Logic (Midi) you can record yourself and delete whatever went wrong, if you did a mistaken or you can edit the notes by using the piano roll which is at the bottom. For a midi keyboard , some can be compatible for using at live shows by having a 'midi in-and out' option at the back. There's many softwares that uses a midi keyboard and they are reason, abelton, fl studio and so on - if you are going to use these softwares make sure you have a midi keyboard as it would be a bit more difficult to play in the notes.
To add on midi keyboard are mostly found in studios this is because midi is mainly used for studio, recording type of work.

Differences and similarities between a Midi Keyboard, Solo performance (Keyboard and a live performance keyboard (band)

The difference between these keyboards is that each of these have different roles. For a midi keyboard you would be using this to record your own beats or drums in a studio. In a Solo performance you would be performing in a concert by yourself, however for a live performance (with a band) you would be performing with your band. When it's a Band performances (as a keyboard player) you would have to play, whatever your band is playing but when it's a solo performance, you can pick and choose whatever you want to play.
For a Midi keyboard, you'll be using Logic in the studio.
In comparision - the similarities between These keyboards, is that for a solo performance and a live performance, you would be performing on a keyboard.... but the similarities between a Solo performance (keyboard) is that you'll be playing whatever you want.