前幾天 [@lovecankill][lovecankill-twitter] 提到 [The Haskell School of Music: From Signals to Symphonies][school-of-music] 出版了。

查了下才知道在 Paul Hudak 過世後， Donya Quick 接手完成整本書。

Reddit 上的 lovaz 快三年前擔心沒人接手，[曾問][lovaz-3pt3dg]：

> But, as some of you know, Mr. Hudak passed away earlier this year and the book is now finished - chapters on frequency modulation are only half way done. Physical Modelling chapter has a lot of empty spaces. I can't understand ideas presented there if there is no explanation :(

hsyl20 回答道：

> You should ask Donya Quick: http://donyaquick.com/ I have been told she is to complete the book.

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但我連 [The Haskell School of Expression][school-of-expression] 都還沒讀完，現在衝動購物也沒意思 XD

[lovecankill-twitter]: https://twitter.com/lovecankill
[school-of-music]: http://euterpea.com/haskell-school-of-music/
[lovaz-3pt3dg]: https://www.reddit.com/r/haskell/comments/3pt3dg/continuation_of_haskell_school_of_music_by_paul/
[school-of-expression]: ./2017-11-24-school-of-expression