======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '160'
                                          'artist'  'Barbara Foster'
                                     'text_people'  ''
                                         'release'  'Jeremy Is Born (Kay-Em KM-505 Stereo)'
                                           'title'  'Jeremy Is Born'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'entertaining-unintended'
                                             'bpm'  '144.6'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Jeremy Is Born (Kay-Em KM-505 Stereo)'
'TBPM' (BPM (beats per minute))                     '144.6'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unintended'
'TDRC' (Recording time)                             '1979'
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'Jeremy Is Born'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Barbara Foster'
'TPE2' (Band/orchestra/accompaniment)               'Barbara Foster'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.999647'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.basichipdigitaloddio.com/365/')

========================== row from database ==========================
                                              'id'  981546
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/473 barbara foster - jeremy is born/01_Jeremy_Is_Born.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  160
                                           'genre'  entertaining-unintended
                                        'filesize'  6554301
                                           'mtime'  1620562891
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 473 barbara foster jeremy is born 01_Jeremy_Is_Born entertaining unintended
                                      'tag_artist'  Barbara Foster
                                     'tag_release'  Jeremy Is Born (Kay-Em KM-505 Stereo)
                                       'tag_title'  Jeremy Is Born
                                             'bpm'  144.6
                                    'search_title'  'born':3 'is':2 'jeremy':1
                                   'search_artist'  'barbara':1 'foster':2
                                  'search_release'  '505':8 'born':3 'em':5 'is':2 'jeremy':1 'kay':4 'kayem':6 'km':7 'km505':9 'stereo':10,11
                                     'search_rest'  '01':7 '473':1 'barbara':2 'born':6,10 'entertaining':11 'foster':3 'is':5,9 'jeremy':4,8 'unintended':12
                                    'search_combo'  '01':23 '473':17 '505':13C 'barbara':4B,18 'born':3A,8C,22,26 'em':10C 'entertaining':27 'foster':5B,19 'is':2A,7C,21,25 'jeremy':1A,6C,20,24 'kay':9C 'kayem':11C 'km':12C 'km505':14C 'stereo':15C,16C 'unintended':28
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562890.773459  (2021-05-09 14:21:30)
                             'size'  6554301