======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '193'
                                          'artist'  'The Coasters'
                                     'text_people'  'Jerry Leiber/Mike Stoller'
                                         'release'  'Yesterdays Gold (24 Golden Oldies) Vol 18'
                                           'title'  'Down In Mexico'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-3']")
                                      'lastfmtags'  "['rock and roll', '60s', 'soul', 'oldies', 'rockabilly']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '113.010'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Yesterdays Gold (24 Golden Oldies) Vol 18'
'TBPM' (BPM (beats per minute))                     '113.010'
'TCOM' (Composer)                                   'Jerry Leiber/Mike Stoller'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Down In Mexico'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Coasters'
'TPE2' (Band/orchestra/accompaniment)               'The Coasters'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Collectables'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', '60s', 'soul', 'oldies', 'rockabilly']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.484917'

========================== row from database ==========================
                                              'id'  1319603
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/07 - Down In Mexico - The Coasters.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  193
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  7742652
                                           'mtime'  1620573840
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set 07 electronic generic or radio dance
                                      'tag_artist'  The Coasters
                                     'tag_release'  Yesterdays Gold (24 Golden Oldies) Vol 18
                                       'tag_title'  Down In Mexico
                                             'bpm'  113.01
                                    'search_title'  'down':1 'in':2 'mexico':3
                                   'search_artist'  'coasters':2 'the':1
                                  'search_release'  '18':9 '24':3,4 'gold':2 'golden':5 'oldies':6,7 'vol':8 'yesterdays':1
                                     'search_rest'  '00poprockelectronic':1 'dance':7 'electronic':3 'generic':4 'or':5 'radio':6 'set':2
                                    'search_combo'  '00poprockelectronic':15 '18':14C '24':8C,9C 'coasters':5B 'dance':21 'down':1A 'electronic':17 'generic':18 'gold':7C 'golden':10C 'in':2A 'mexico':3A 'oldies':11C,12C 'or':19 'radio':20 'set':16 'the':4B 'vol':13C 'yesterdays':6C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', '60s', 'soul', 'oldies', 'rockabilly']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573840.2159142  (2021-05-09 17:24:00)
                             'size'  7742652