cube

                         ___+._______
                    __-""   --     __"""----._____
             __.--"" -- ___--+---_____.     __  .+'|
       _.-'""  __    +:"__   | ._..+"" __    .+'   F
     ...

.--------------------------------.
\\__/\__/\__/\__/\__/\__/\__/\__/\\
 \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\
 \\\___\___\___\___\___\___\___\___\\
  \\\__/\__/\__/\__/\__/\__/\__/\__/\\
   \\\ \ \ \ \ ...

Ice cube (melting)
  .------,
,'_____,'|
|    //| |
|      | |
| //   | ;
|______|'._
   `._     `;
      `-._.'

unknown

     +___________+
    /:\         ,:\
   / : \       , : \
  /  :  \     ,  :  \
 /   :   +-----------+
+....:../:...+   :  /|
|\   +./.:...`...+ / |
| \ ,`/  :   :` ,`/  |
|  \ /`. :   : ` /`  |
| ,...

                  (
 AAAAAaaaaaaaa!
              (   ()   )
    ) ________    //  )
 ()  |\       \  //
( \\__ \ ______\//
   \__) |       |
     |  |       |
      \ |       |
       \|_______|
    ...

                   _
                  / "-._
 .--. . .        (  ._  "-._            ..          _____
(    " ))\        | | "-._  ""--..___../ '....---"""     ""--._
 '. .-//  '.      | |     "-..._...

Granted, the black notes are difficult to distinguish from the white
notes....

It would have to be taken for granted that people would know that D
major was F# and C# and where those notes are on the...

     .========.        .========.
    // I .'..' \      // VI.'.,".\
    || II .'..'|      || VII..'..|
    || III .'."|      || VIII,'.'|
    || IV ,','.|      || IX.'".'.|
    || V '..'.'|      || X...

        \\//////      _______________
        \\    |      /                \
        \(_  x|     /  Bloooeeahhh!!! |
        \    __)  _/__________________/
      __/   _\ ,. .
     /     /  .%:. * ....