From a47d62027c8eefbaecdae73e34334d237841e374 Mon Sep 17 00:00:00 2001
From: Graham Northup <grissess@nexusg.org>
Date: Tue, 11 Sep 2018 02:30:06 -0400
Subject: Fixed IndexError

---
 mkiv.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mkiv.py')

diff --git a/mkiv.py b/mkiv.py
index 9c6970f..cd50ce2 100644
--- a/mkiv.py
+++ b/mkiv.py
@@ -342,7 +342,7 @@ for fname in args:
                     lvtime, lvol = sorted(vol_at[tidx][ev.channel].items(), key = lambda pair: pair[0])[-1]
                     vol_at[tidx][ev.channel][abstime] = (0x3F80 & lvol) | ev.value
                     chg_vol[tidx][ev.channel] += 1
-                events.append(MergeEvent(ev, tidx, abstime, cur_bank[tidx][ev.channel], cur_prog[tidx][ev.channel], cur_mw[tidx][ev.channel], events[-1]))
+                events.append(MergeEvent(ev, tidx, abstime, cur_bank[tidx][ev.channel], cur_prog[tidx][ev.channel], cur_mw[tidx][ev.channel], events[-1] if events else None))
                 ev_cnts[tidx][ev.channel] += 1
             elif isinstance(ev, midi.MetaEventWithText):
                 events.append(MergeEvent(ev, tidx, abstime))
-- 
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