======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '66'
                                          'artist'  'SPK'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'heavy artillery'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial', 'synthpop', 'noise', 'old school industrial', 'dark ambient', "
 "'experimental']")
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '101.057'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            ' 000010AE 000010FE 0000CB0A 00'
'COMM:iTunNORM:eng'                                 (' 000010AE 000010FE 0000CB0A 0000E1F0 00010198 000101C7 00008000 00008000 '
 '000001B9 00000116')
'TBPM' (BPM (beats per minute))                     '101.057'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TIT2' (Title/songname/content description)         'heavy artillery'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'SPK'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['industrial',
 'synthpop',
 'noise',
 'old school industrial',
 'dark ambient',
 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.92 dB'
'TXXX:replaygain_track_peak'                        '0.386021'

========================== row from database ==========================
                                              'id'  1296499
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/01 spk ft n o r e - heavy artillery (intro) (www flowhot net).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  66
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  1068220
                                           'mtime'  1628353847
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 01 spk ft n o (intro) (www flowhot net) electronic we electropop or synthpop
                                      'tag_artist'  SPK
                                     'tag_release'  None
                                       'tag_title'  heavy artillery
                                             'bpm'  101.057
                                    'search_title'  'artillery':2 'heavy':1
                                   'search_artist'  'spk':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'electronic':18 'electropop':20 'files':5,6 'flowhot':15 'ft':8 'intro':11,12 'loose':3,4 'n':9 'net':16,17 'o':10 'or':21 'spk':7 'synthpop':22 'unsorted':2 'we':19 'www':13,14
                                    'search_combo'  '00poprockelectronic':4 'artillery':2A 'electronic':21 'electropop':23 'files':8,9 'flowhot':18 'ft':11 'heavy':1A 'intro':14,15 'loose':6,7 'n':12 'net':19,20 'o':13 'or':24 'spk':3B,10 'synthpop':25 'unsorted':5 'we':22 'www':16,17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'synthpop', 'noise', 'old school industrial', 'dark ambient', 'experimental']
                                        'tag_date'  
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1628353847.3345714  (2021-08-07 18:30:47)
                             'size'  1068220