Pitch is directly proportional to the size of the pipe.
Big
In general yes. There some very small portative pipe organs that might be smaller than a large harmonium but in general pipe organs are larger than harmoniums.
One could argue that electronic organs that mimic the sounds of pipe organs are their descendants, but in truth, pipe organs are still in use today, mechanically, as pipe organs.
Pipe organs
tissue are small organs in the body. Big tissues change into cells
pipe, electronic, and reed organs. also a harmonica is a mouth organ.
You can get grant money to restore pipe organs from various sources. Most corporations and organizations will offer grants. You can look for a corporation that will identify with your need to award you the grant.
Pipe organs have different sized pipes because they can then make different sounds.
No
Small organs have high surface area:volume ratio.So they are active than large organs.
No. A concertina is a type of accordion. Even the smallest pipe organs are larger than a concertina.
Usually not.