I’m a beginner and I want to create a project of a midi keyboard.
What do you advice me ?
How should I start ? For now, I load the background image and I start to trace it.
Thank you
Your reference is slightly ‘skewed’ It is not perfectly horzontal. But ignore that and trace it in Blender with the corrections.
What I would do, is create the basic body, then add the knobs and keys.
Depending on how realistic you are going for, plan ahead for holes and certain shapes.
I use SubSurf, if you plan on that, mesh while SubSurf is on.
I made it before reading your post. It’s my first project, be clement please 
What can I do to improve it ?
Attachments
Start over. It will probably be harder to improve it than to updated it.
Here’s the Blende File to get you started…
http://mysite.verizon.net/vze3nvj6/Blender/forum/basicKB.zip