Blut und WeinTiming
There's something going on in the beginning with your timing points
Mapping
imo there are some other instruments you can map instead of just the singer/bass to make your map more itneresting
00:47:499 1,2,3,4 the introduction of this pattern is very sudden, It will confuse first time players, I would make mini-patterns of this earlier on to slowly introduce the player to it, so they aren't thrown off by the sudden pattern.
01:12:530 2,3 I would put 2 on 3 to reflect the guitar sound better- Guitar here has sudden changes so interrupting movement of the player reflects the guitar better imo, as it requires the player to make sharp and fast movements.
01:12:905 4,1 ^
01:13:280 2,3 ^
01:13:655 4,1 ^ basically the rest of the following patterns that are similar
01:15:249 1 consider moving the slider for a small jump; new note is introduced by the guitar here, so you can make it stand out
01:33:249 1,2,3 awkward movement imo, consider flipping 1 and 3 around so they face each other
01:35:874 5,6 make into slider
01:36:624 5,6 ^
01:37:374 5,6 ^
01:38:124 5 you can turn it into a slider until the red tick
01:52:936 2,3 extend 3, add a hit circle in between 2,3
01:55:936 2,3 ^
01:59:124 2,3 ^
02:01:936 2,3 ^
02:03:999 1,2,3,4 snap distance isn't representative of the time between each note, i recommend re positioning unless it's intentional
02:05:499 1,2,3,4 ^
02:07:749 1,2,3,4 ^
02:08:499 1,2,3,4 ^
02:48:811 3,4 This may be difficult to read, consider separating them
02:50:124 5,1 ^
03:28:749 1,2,1,2,3,1,2,3 I would personally make these sliders straight instead of curved- the guitar sounds here don't really change in pitch for the duration of the sliders, so straight sliders may represent it better
03:36:811 4,1 I would avoid stacking this
03:41:874 2,3,1,2,3,4 sounds a bit off here.. you seemed to have mapped the sections where the instrument isn't actually playing.
03:44:874 2,3,1,2,3,4 ^
03:49:936 2 move to 03:49:999 using 1/3
04:17:374 1 no need new combo here
04:18:249 1 make this into a slider?
04:45:999 1 you can make this into a spinner
05:07:349 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 consider increasing spacing to reflect the music
05:08:761 1,2,3,4,5,6,7,8,9,10,11,12,13 ^