======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '375'
                                          'artist'  'Jaga Jazzist'
                                     'text_people'  ''
                                         'release'  'What We Must'
                                           'title'  'Stardust Hotel'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', '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-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'ninja tune', 'jazz', 'electronic', 'nu jazz']"
                                     'discogstags'  "['electronic', 'rock', 'fusion', 'future jazz', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-experimental or free'
                                             'bpm'  '132.444'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'What We Must'
'TBPM' (BPM (beats per minute))                     '132.444'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-experimental or free'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Stardust Hotel'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jaga Jazzist'
'TPE2' (Band/orchestra/accompaniment)               'Jaga Jazzist'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'fusion', 'future jazz', 'post rock']
'TXXX:lastfmtags'                                   ['instrumental', 'ninja tune', 'jazz', 'electronic', 'nu jazz']
'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'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.18 dB'
'TXXX:replaygain_track_peak'                        '0.437905'

========================== row from database ==========================
                                              'id'  1274788
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Jaga Jazzist/What We Must/02 stardust hotel.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  375
                                           'genre'  prerock-jb-jazz-newer-experimental or free
                                        'filesize'  15022717
                                           'mtime'  1620530279
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 02 stardust hotel prerock jb jazz newer experimental or free
                                      'tag_artist'  Jaga Jazzist
                                     'tag_release'  What We Must
                                       'tag_title'  Stardust Hotel
                                             'bpm'  132.444
                                    'search_title'  'hotel':2 'stardust':1
                                   'search_artist'  'jaga':1 'jazzist':2
                                  'search_release'  'must':3 'we':2 'what':1
                                     'search_rest'  'country':4 'exotica':2 'experimental':10 'free':12 'hotel':6 'jazz':1 'jb':8 'newer':9 'oldies':3 'or':11 'prerock':7 'stardust':5
                                    'search_combo'  'country':11 'exotica':9 'experimental':17 'free':19 'hotel':2A,13 'jaga':3B 'jazz':8 'jazzist':4B 'jb':15 'must':7C 'newer':16 'oldies':10 'or':18 'prerock':14 'stardust':1A,12 'we':6C 'what':5C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'ninja tune', 'jazz', 'electronic', 'nu jazz']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'rock', 'fusion', 'future jazz', 'post rock']

============================== file details ==============================
                                           'mtime'  1620530278.9843662  (2021-05-09 05:17:58)
                             'size'  15022717