======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '148'
                                          'artist'  "O'Jay Oliver & The Crackerjacks"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Good Gravy (Coed 500, 1958)'
                                           'quals'  ("['Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '114.028'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '114.028'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Good Gravy (Coed 500, 1958)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               "O'Jay Oliver & The Crackerjacks"
'TXXX:Mp3gain_minmax'                               '053,206'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.71 dB'
'TXXX:replaygain_track_peak'                        '0.451407'

========================== row from database ==========================
                                              'id'  1503666
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/O_Jay Oliver & The Crackerjacks - Good Gravy (Coed 500, 1958).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  148
                                           'genre'  set-th-novelty
                                        'filesize'  1780154
                                           'mtime'  1620343088
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Zimelis [Chow, Baby!] O_Jay set th novelty
                                      'tag_artist'  O'Jay Oliver & The Crackerjacks
                                     'tag_release'  None
                                       'tag_title'  Good Gravy (Coed 500, 1958)
                                             'bpm'  114.028
                                    'search_title'  '1958':7,8 '500':5,6 'coed':3,4 'good':1 'gravy':2
                                   'search_artist'  'crackerjacks':6 'jay':2 'o':1 'ojay':3 'oliver':4 'the':5
                                  'search_release'  
                                     'search_rest'  'baby':8,9 'chow':6,7 'country':4 'exotica':2 'jay':11 'jazz':1 'novelty':14 'o':10 'oldies':3 'set':12 'th':13 'zimelis':5
                                    'search_combo'  '1958':7A,8A '500':5A,6A 'baby':22,23 'chow':20,21 'coed':3A,4A 'country':18 'crackerjacks':14B 'exotica':16 'good':1A 'gravy':2A 'jay':10B,25 'jazz':15 'novelty':28 'o':9B,24 'ojay':11B 'oldies':17 'oliver':12B 'set':26 'th':27 'the':13B 'zimelis':19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343088.3893967  (2021-05-07 01:18:08)
                             'size'  1780154