didn't work on the following argument array: 4ic6j - Expected: '3pen', instead got: 'invalid word'
didn't work on the following argument array: 4ty439 - Expected: '2ante-pen', instead got: 'invalid word'
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Sometimes I can catch the above error in random tests. The original solution seems to treat such cases wrong.

Python:

• Missing it block in sample tests

• Imports are missing

• Random tests make no sense in this kata, there are only 8 scale degrees anyway.
• Actually, the entire kata does not make sense. Each octave contains the key G twice? Or does each octave start on a different degree?

You can pass some tests if you provide array with decimal codes od letters.

• Node 18. should be enabled (Refer this and this for more info)

Description should define what is supposed to be considered a syllab here (syllabification in English is far from being a trivial question in general, and this is supposed to be a programming challenge, not a linguistics exam; I guess the kata only tests obvious cases, but anyhow something is missing).

Random tests (in JavaScript at least) use too limited a range of inputs; a hardcoded solution can be easily derived.

Python testing allows for incorrect solutions to pass, critically so in regards to the simple upper edge case of 100; here's an extreme example.

C++ Translation

Edge cases at len = 100 and 101 might be helpful. There are no guaranteed test cases at these lengths.

Some solutions will reject a string of 100 characters, yet still pass the test cases.

Python translation added

Maybe include a Test for n=3.166312747397789. I've seen a solution which would output 8 as result.

The example tests needs serious improvement:

• Why are two assertNotSimilar tests thrown at the end using 'shouldn't expect this' value of the other kind? It causes nothing but confusion.
• Example tests didn't demonstrate the round off aliasing behaviour either.

CofeeScript Translation Kumited! Please accept :d