[By design] Grace notes issue

2/7/2018 3:33 PM
Title: Grace notes issue
Reproduction Rate: 100%
Blocker? No
Details:

Grace notes is defined at following URL:
http://abcnotation.com/wiki/abc:standard:v2.1?s[]=grace#grace_notes
In SoA playing grace notes is incorrect.​

Steps to Reproduce:

Following is a ABC score for testing:
X:1
T: Invention 1 Test Version (RightHand Only)
C: Johan Sebastian Bach (1685-1750)
C: BWV 772
Q: 60
L: 1/16
M: 4/4
K:C
z CDE FDEC G2c2{B/c/}B2c2| dGAB cABG d2g2{f/g/}f2g2||
save above data to sheet folder, and play it. listen carefully.
SoA will play this score as following:
https://www.dropbox.com/s/83pck10n0cku8n6/Test-graceSoA.mp3?dl=0
But expected play is followings:
https://www.dropbox.com/s/ru1uyk9mljt6no6/Test-graceABCExplore.mp3?dl=0​

User Specs:
OS: Windows 10 (10.0.0) 64bit
CPU: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (8) System RAM: 32673
GPU: NVIDIA GeForce GTX 960M GPU RAM: 2019
SotA.EarlyAccess.LIVE.Win.64.728.Date.01.30.18
Area: Novia_R6_City_Jaanaford
Area Display Name: Jaanaford
Loc: (62.7, 38.4, 130.3)
Debug: Tm92aWFfUjZfQ2l0eV9KYWFuYWZvcmR8fCg2Mi42NTEsIDM4LjM2NSwgMTMwLjI4MSl8KDAsIDAuOTExLCAwLCAwLjQxMil8MTk2LjQzNjl8MTguMDE2MnwxLjI1

 

Submitted for review: #55563, thank you
@yukimimiya

 

I had to research this a bit, but here is what I found:

We simply just do not support Grace notes, as in the library that interprets the abc files does not. I can't file a bug report on it if it isn't necessarily a bug, sorry about that
@yukimimiya

 

Thanks for your research.
Some examples seem work fine. So I'd thought the interpreter support it.
In this time, I learn the specification of SoA ABC interpreter.
It was very important information.
Thanks, again.