======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  'Bix Beiderbecke with Frankie Trumbauer and His Orchestra'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  'Blue River'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '144.645'
                                             'key'  '5A'
                                        'acoustid'  'ff6c5661-2a73-49c1-be90-fdc3267d051f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1920s and 1930s popular'
'TBPM' (BPM (beats per minute))                     '144.645'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '1979'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         'Blue River'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Bix Beiderbecke with Frankie Trumbauer and His Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Time-Life Music'
'TSO2'                                              'Beiderbecke, Bix'
'TSOP' (Performer sort order)                       'Beiderbecke, Bix with Trumbauer, Frankie and His Orchestra'
'TXXX:Acoustid Id'                                  'ff6c5661-2a73-49c1-be90-fdc3267d051f'
'TXXX:CATALOGNUMBER'                                'STL-J04'
'TXXX:MusicBrainz Artist Id'                        '32286190-da0f-4a85-b3d6-09a84d7e2bbc/9d67b4ef-cd78-4202-a379-78324d66c4bc'
'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:SCRIPT'                                       'Latn'
'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'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.501039'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2b77a5d9-dbab-4407-81a2-48bbd2f6d718')

========================== row from database ==========================
                                              'id'  1146474
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Bix Beiderbecke - Blue River.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3182592
                                           'mtime'  1620524362
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock jb jazz unsorted
                                      'tag_artist'  Bix Beiderbecke with Frankie Trumbauer and His Orchestra
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  Blue River
                                             'bpm'  144.645
                                    'search_title'  'blue':1 'river':2
                                   'search_artist'  'and':6 'beiderbecke':2 'bix':1 'frankie':4 'his':7 'orchestra':8 'trumbauer':5 'with':3
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'jb':7 'oldies':3 'prerock':6 'unsorted':8
                                    'search_combo'  '00oldiepop':19 '1920s':11C '1930s':13C 'and':8B,12C 'beiderbecke':4B 'bix':3B 'blue':1A 'country':18 'exotica':16 'frankie':6B 'his':9B 'jazz':15 'jb':21 'oldies':17 'orchestra':10B 'popular':14C 'prerock':20 'river':2A 'trumbauer':7B 'unsorted':22 'with':5B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', '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'  []
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524361.5586083  (2021-05-09 03:39:21)
                             'size'  3182592