======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '207'
                                          'artist'  'the stranglers'
                                     'text_people'  ''
                                         'release'  'Peaches - The Very Best Of'
                                           'title'  'Golden Brown'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-2', 'q-vocals-2', 'q-mixbeat-2', 'Q-PIANO-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'soundtrack', 'british', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '125.704'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Peaches - The Very Best Of'
'TBPM' (BPM (beats per minute))                     '125.704'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Golden Brown'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'the stranglers'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'soundtrack', 'british', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.26 dB'
'TXXX:replaygain_track_peak'                        '0.891781'

========================== row from database ==========================
                                              'id'  1294397
                                            'path'  /data/Music/Bulk/00poprockelectronic/the stranglers/The Stranglers__MBZ;#The Stranglers;#Peaches - The Very Best Of;#02;#Golden Brown.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  207
                                           'genre'  rock-unsorted
                                        'filesize'  4986706
                                           'mtime'  1620392826
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Stranglers__MBZ;#The Stranglers;#Peaches Of;#02;#Golden rock unsorted
                                      'tag_artist'  the stranglers
                                     'tag_release'  Peaches - The Very Best Of
                                       'tag_title'  Golden Brown
                                             'bpm'  125.704
                                    'search_title'  'brown':2 'golden':1
                                   'search_artist'  'stranglers':2 'the':1
                                  'search_release'  'best':4 'of':5 'peaches':1 'the':2 'very':3
                                     'search_rest'  '00poprockelectronic':1 '02':13,16 'golden':14,17 'mbz':3,6 'of':12,15 'peaches':9,11 'rock':18 'stranglers':2,5,8,10 'the':4,7 'unsorted':19
                                    'search_combo'  '00poprockelectronic':10 '02':22,25 'best':8C 'brown':2A 'golden':1A,23,26 'mbz':12,15 'of':9C,21,24 'peaches':5C,18,20 'rock':27 'stranglers':4B,11,14,17,19 'the':3B,6C,13,16 'unsorted':28 'very':7C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'soundtrack', 'british', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392825.5588455  (2021-05-07 15:07:05)
                             'size'  4986706