pedrozath

They're just characters. There are characters in terminal fonts introduced decades ago that allow you to draw different shapes, such as

      ⬤    ⬤  ⬤   ⬤    ⬤  ⬤   ⬤    ⬤             ⬤  ⬤
      ┍━┯━┯━┯━┯━┑    ┍━┯━┯━┯━┯━┑    ┍━┯━┯━┯━┯━┑    ┍━┯━┯━┯━┯━┑
   3  │ ⬤│ │ │ │ 8  │ │ │ │ ⬤│ 3  │ ⬤│ │ │ ⬤1  │ │ │ │ ⬤│
      ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥
   4  │ │ │ │ │ │ 9  │ │ │ │ │ │ 4  │ │ │ │ │ │ 2  │ │ ⬤│ │ │
      ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥
   5  │ │ ⬤│ ⬤│ 10 │ ⬤⬤│ │ │ 5  │ │ ⬤│ ⬤│ 3  ⬤⬤│ │ │ │
      ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥    ┝━┿━┿━┿━┿━┥
   6  │ │ │ │ │ │ 11 │ │ │ │ │ │ 6  │ │ │ │ │ │ 4  │ │ │ │ │ │
      ┕━┷━┷━┷━┷━┙    ┕━┷━┷━┷━┷━┙    ┕━┷━┷━┷━┷━┙    ┕━┷━┷━┷━┷━┙

It doesn't align perfectly here, but on terminal it does.

> because none of the commands work

The Readme had some outdated information. Explained better on the issue https://github.com/pedrozath/coltrane/issues/56

> The chords for guitar also are weird. It doesn't seem to be using traditional shapes, but is looking for available notes within a fret range. Which leads to difficult, basically unusable fingerings.

That's a design choice on this library. I tried to rely the least as possible on lookup tables, dictionaries, etc, leaving things to be discovered algorithmically instead. It is a difficult challenge, but for example if someone decides to use an entirely different tuning, the software will provide. The software might also find chords that you have never thought about. What has to be improved here is the sorting mechanism for guitar chords.

> The other functions would be very useful to have, if it worked

Just try running `coltrane` and test it interactively.

Just created this newsletter on substack https://coltrane.substack.com

Please sign up there, will let as the project progresses

Hey there everyone. My name is Pedro and I'm the creator of the mentioned project.

First of all, I'm really grateful for all the feedback, positive and negative, about my project. When I started this 6 years ago, I was teaching myself harmony. Writing a Ruby Gem was a way of making sense of all that and at the same time making what I consider "music calculations".

A lot has happened since then. I've realized that while a Ruby gem might be cool for some applications, I really wanted to have something more visual and more inviting. Like an app. I have completed my (belayed) college degree on Graphic Design with my final project being this app's design. It's all ready. Now it's just a matter of finally implementing it. So I've been working, since around 3 years, on a multiplatform app. Possibly also a VST plugin version for DAWs.

Thank you all for the interest on the Gem/CLI project however. It's not abandoned. Since many of you expressed interest on it, I'll take a look at the problems you reported. Certainly a way to install via homebrew would help I believe.

It's 4 AM over here now so I better cut it here but will comeback later and maybe answer some of the individual messages.