======================== unified (from filesystem) ========================
                                         'bitrate'  '217.773'
                                        'duration'  '271'
                                          'artist'  'Skeewiff'
                                     'text_people'  ''
                                         'release'  'Private Funktion'
                                           'title'  'Man of Constant Sorrow'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', "
 "'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', "
 "'q-vocals-3']")
                                      'lastfmtags'  "['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']"
                                     'discogstags'  "['electronic', 'jazz', 'fusion', 'jazz-funk', 'big beat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '143.314'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Private Funktion'
'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Man of Constant Sorrow'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Skeewiff'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'jazz', 'fusion', 'jazz-funk', 'big beat']
'TXXX:lastfmtags'                                   ['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.63 dB'
'TXXX:replaygain_track_peak'                        '0.524266'

========================== row from database ==========================
                                              'id'  1316169
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Skeewiff/04_skeewiff-man_of_constant_sorrow.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  271
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  7401059
                                           'mtime'  1639842736
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 04_skeewiff man_of_constant_sorrow electronic th breakbeat dnb jungle
                                      'tag_artist'  Skeewiff
                                     'tag_release'  Private Funktion
                                       'tag_title'  Man of Constant Sorrow
                                             'bpm'  143.314
                                    'search_title'  'constant':3 'man':1 'of':2 'sorrow':4
                                   'search_artist'  'skeewiff':1
                                  'search_release'  'funktion':2 'private':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 '04':3 'breakbeat':11 'constant':7 'dnb':12 'electronic':9 'jungle':13 'man':5 'of':6 'skeewiff':4 'sorrow':8 'th':10
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 '04':10 'breakbeat':18 'constant':3A,14 'dnb':19 'electronic':16 'funktion':7C 'jungle':20 'man':1A,12 'of':2A,13 'private':6C 'skeewiff':5B,11 'sorrow':4A,15 'th':17
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic', 'jazz', 'fusion', 'jazz-funk', 'big beat']

============================== file details ==============================
                                           'mtime'  1639842735.814759  (2021-12-18 16:52:15)
                             'size'  7401059