Ëêeé

Info
Allright, you have been lead to Ëêeé by means unbeknown to me, but that is none of my concern. This is a minimalistic language (duh, why else would it be named ' Ëêeé '?), and I want to use it to explore the boundaries of the magnificent, epic tool known as language. As you would have probably noticed, the language is made of multiple varieties of 'e', but it has one consonant! Wow! But guess what! You'll probably be disappointed when I tell you this, the consonant is the glottal stop.

The purpose of Ëêeé is to let me examine the limits of language, in this case, a full language complete with grammar, phonotactics, morphology and such only with vowels and one consonant.

Phonology
Ëêeé is a minimalistic language, comprised almost exclusively of varieties of 'e'. For those that cannot type Ëêeé's letters, here are the special characters: There are other letters, too, but these are the basic ones.

The following table depicts the basic vowels:

These vowels make up the basic letter forms of Ëêeé, and each of the formentioned special characters has a meaning, be it a corresponding vowel, or the vowel's length. The basic characters contain nine vowels and seven double vowels, and extensions to the alphabet contain the dot ( . ), and the apostrophe ( ' ). The dot indicates that the vowel is high-pitched, while the apostrophe indicates the vowel is low pitched.

Correspondence
Each of the different forms of 'e' have an IPA value that corresponds only to that letter. The following table depicts those letters next to their corresponding IPA values:

Also, the glottal stop is indicated by a hyphen/minus ( - ).

Phonotactics
Since obviously classical consonant/vowel/semivowel/nasal phonotactics doesn't work here, I will mark letters as normals, doubles, normal highs, normal lows, double lows and double highs. In the previous chart, the first nine vowels are normals, the other seven are doubles. The dotted versions are highs, while those with the apostrophe are lows.