diff --git a/dither4.s b/dither4.s
index 3b5254c..bcab440 100644
--- a/dither4.s
+++ b/dither4.s
@@ -195,7 +195,7 @@ wait_loop:
         bne audio_cont     ; 2
 
         ; 12 cycles, optional
-        inc sample_ptrh                 ; 5
+        inc sample_ptrh                 ; 5 <- here is the current hard limit
         lda sample_ptrh                 ; 3
         cmp #.hibyte(audio_samples_end) ; 2
         bmi audio_cont                  ; 2
@@ -218,10 +218,10 @@ wait_loop:
         inner_scanline frame_offset, 0 ; 23-26 cycles before break, 12 cycles after
 
         audio_play_raw ; 11-12 cycles
-        audio_inc      ; 7-24 cycles
 
         ldy scanline   ; 3 cycles
         inner_scanline frame_offset, 128 ; 23-26 cycles before break, 12 cycles after
+        audio_inc      ; 7-24 cycles
 
         ; pair cleanup: 6 cycles
         ldy VCOUNT             ; 4 cycles