======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '182'
                                          'artist'  'Jack Teagarden And His Orchestra'
                                     'text_people'  ''
                                         'release'  '1930-1934 {Chronological Classics, 698}'
                                           'title'  "Just A Little Dance, Mam'selle"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', '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-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['trombone', 'all', 'jazz', 'brass', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '23'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '89.295'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1930-1934 {Chronological Classics, 698}'
'TBPM' (BPM (beats per minute))                     '89.295'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "Just A Little Dance, Mam'selle"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Teagarden And His Orchestra'
'TRCK' (Track number/Position in set)               '3/23'
'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:lastfmtags'                                   ['trombone', 'all', 'jazz', 'brass', 'swing']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.33 dB'
'TXXX:replaygain_track_peak'                        '0.446569'

========================== row from database ==========================
                                              'id'  1504059
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Jack Teagarden - 1930-1934 {CC, 698}/03. Just A Little Dance, Mam_selle.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  182
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7300971
                                           'mtime'  1620530243
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country {CC, 03. Mam_selle prerock jb jazz unsorted
                                      'tag_artist'  Jack Teagarden And His Orchestra
                                     'tag_release'  1930-1934 {Chronological Classics, 698}
                                       'tag_title'  Just A Little Dance, Mam'selle
                                             'bpm'  89.295
                                    'search_title'  'a':2 'dance':4,5 'just':1 'little':3 'mam':6 'mamselle':8 'selle':7
                                   'search_artist'  'and':3 'his':4 'jack':1 'orchestra':5 'teagarden':2
                                  'search_release'  '1930':1 '19301934':3 '1934':2 '698':7 'chronological':4 'classics':5,6
                                     'search_rest'  '03':7,8 'cc':5,6 'country':4 'exotica':2 'jazz':1 'jb':12 'mam':9 'oldies':3 'prerock':11 'selle':10 'unsorted':13
                                    'search_combo'  '03':27,28 '1930':14C '19301934':16C '1934':15C '698':20C 'a':2A 'and':11B 'cc':25,26 'chronological':17C 'classics':18C,19C 'country':24 'dance':4A,5A 'exotica':22 'his':12B 'jack':9B 'jazz':21 'jb':32 'just':1A 'little':3A 'mam':6A,29 'mamselle':8A 'oldies':23 'orchestra':13B 'prerock':31 'selle':7A,30 'teagarden':10B 'unsorted':33
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['trombone', 'all', 'jazz', 'brass', 'swing']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530242.8398845  (2021-05-09 05:17:22)
                             'size'  7300971