Hello Len,

Here is the parameter of the tweak of your "LightMusic"

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      415C6156483B64423C34275026164317103100001C000000
      00000000000000000300001C0002230F0D391C19381A2A2D
      152326130D26130F1E210F1C17122716133219153B1D1942
      17133917103105011E0903191227232642413B595D576572
      8C6A64806F7259757F4D6D7F4C677B344F63233E481D3949
      1E43422743452D4F5435596050717954797B56787E4F7883
      5471804F68855741834542794D5A6F5979936F89977B94A2
      89B5D1ECFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBF5EE9E
      96906774605E434F5E41386E38275D2F1E5232264F493827
      493827483E1532341D23240B0C0100000000000000000000
      00060200131500191A0521231C2F34241C432016451E1948
      20174D231A59241950231C491D173E0F1631030617000213
      010103090600030600000000000002050110121D211C3839
      2E4C503B595D4D6A745A787F9B9B8DE0D68CFFFFF8FFFFFF
      FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE4EEF9A0ACC2
      7B8DA57189946E7891919357A7A46EF3CFB9FFFFE4FFFFFF
      F3ECD1BDB472B185437878484864634257613E3B593B315D
      2E2E5020393C203B38262F3B373E213B2F2B8A8065565357
      3432461D1539150628030216000315000206000001050009
      00000D00000D000510000816060927151037201C422A244A
      28244D312053322E54344F5732545A385C6148646E54757E
      5774755E68746B74417B753F7672467B60577B615E837954
      806F758297A196A8B5D1DEF6E2FFFFEAFFFFFFFFFFD7F1FF
      80A8CA78949E5772864C68753F636A35505931485D2E2E53
      312B60392F60322857273954284248233E4627343B373927
      575D2850636F5D6F8A63859390A5C3E2ECFFFCFFFFFFFFFF
      FFFFFFFFFFFFF2FFFFDACCD79393A1A18285A58286D1CAAE
      F9FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
      FFFFFFFFFFFFFFFFFFFFFFFFE4EFFF8699A46F7489436168
      26424113312A06211E0013230C231E132824102D2E133946
      233F3E243E3E243935132E2B0F26210923260F28281C1A46
      261D532F2156322B65433E6D45576F4D657C546F79506B74
  

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And yes, I used a script with an overlay-choise made by Shortgreenpigg.