======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '144'
                                          'artist'  'Louis Armstrong'
                                     'text_people'  ''
                                         'release'  'GOLDEN BIG BAND ERA VOL. 2'
                                           'title'  'MAME'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'trumpet', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '145.580'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'GOLDEN BIG BAND ERA VOL. 2'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-o-dixiestyle', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TIT2' (Title/songname/content description)         'MAME'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis Armstrong'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'trumpet', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.574002'

========================== row from database ==========================
                                              'id'  674220
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Louis Armstrong/09_LOUIS ARMSTRONG_MAME_GOLDEN BIG BAND ERA VOL. 2.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  144
                                           'genre'  prerock-jb-jazz-o-dixiestyle;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  2315974
                                           'mtime'  1620531735
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 09_LOUIS ARMSTRONG_MAME_GOLDEN prerock jb jazz dixiestyle;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Louis Armstrong
                                     'tag_release'  GOLDEN BIG BAND ERA VOL. 2
                                       'tag_title'  MAME
                                             'bpm'  145.58
                                    'search_title'  'mame':1
                                   'search_artist'  'armstrong':2 'louis':1
                                  'search_release'  '2':7 'band':3 'big':2 'era':4 'golden':1 'vol':5,6
                                     'search_rest'  '09':5 'armstrong':7 'country':4 'dixiestyle':12,14 'exotica':2 'golden':9 'jazz':1 'jb':11 'louis':6 'mame':8 'mor':21 'oldies':3 'pl':16 'prerock':10 'set':13,15,18,20 'shirleyspinoza':17,19
                                    'search_combo'  '09':15 '2':10C 'armstrong':3B,17 'band':6C 'big':5C 'country':14 'dixiestyle':22,24 'era':7C 'exotica':12 'golden':4C,19 'jazz':11 'jb':21 'louis':2B,16 'mame':1A,18 'mor':31 'oldies':13 'pl':26 'prerock':20 'set':23,25,28,30 'shirleyspinoza':27,29 'vol':8C,9C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'trumpet', 'oldies', 'swing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531735.061537  (2021-05-09 05:42:15)
                             'size'  2315974