======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '92'
                                          'artist'  'Fred Allen'
                                     'text_people'  ''
                                         'release'  'old acetates'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '144.438'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'old acetates'
'TBPM' (BPM (beats per minute))                     '144.438'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1941'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fred Allen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:other'                                        'FredAllen02051941-part1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+2.45 dB'
'TXXX:replaygain_track_peak'                        '0.477435'

========================== row from database ==========================
                                              'id'  727070
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old acetates [96k-128k]/FredAllen02051941-part1.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  92
                                           'genre'  prerock-unsorted
                                        'filesize'  742502
                                           'mtime'  1676046370
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old [96k 128k] FredAllen02051941 part1 prerock unsorted
                                      'tag_artist'  Fred Allen
                                     'tag_release'  old acetates
                                       'tag_title'  None
                                             'bpm'  144.438
                                    'search_title'  None
                                   'search_artist'  'allen':2 'fred':1
                                  'search_release'  'acetates':2 'old':1
                                     'search_rest'  '128k':8,9 '96k':6,7 'allen02051941':15 'country':4 'exotica':2 'fred':14 'fredallen02051941':10 'jazz':1 'old':5 'oldies':3 'part1':11 'prerock':12 'unsorted':13
                                    'search_combo'  '128k':12,13 '96k':10,11 'acetates':4C 'allen':2B 'allen02051941':19 'country':8 'exotica':6 'fred':1B,18 'fredallen02051941':14 'jazz':5 'old':3C,9 'oldies':7 'part1':15 'prerock':16 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1941
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676046369.7729988  (2023-02-10 17:26:09)
                             'size'  742502