======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'Alexis Alrich'
                                     'text_people'  ''
                                         'release'  'Tellus #14: Just Intonation'
                                           'title'  'Didymus Set (Tango)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-2', 'q-mixbeat-1', "
 "'Q-PIANO-4']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '118.9'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tellus #14: Just Intonation'
'TBPM' (BPM (beats per minute))                     '118.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Didymus Set (Tango)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alexis Alrich'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.74 dB'
'TXXX:replaygain_track_peak'                        '0.396057'

========================== row from database ==========================
                                              'id'  1515908
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1986 - Tellus #14 - Just Intonation/15 - Alexis Alrich - _Didymus Set (Tango).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  3489009
                                           'mtime'  1628358184
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1986 15 _Didymus electronic experimental oddness
                                      'tag_artist'  Alexis Alrich
                                     'tag_release'  Tellus #14: Just Intonation
                                       'tag_title'  Didymus Set (Tango)
                                             'bpm'  118.9
                                    'search_title'  'didymus':1 'set':2 'tango':3,4
                                   'search_artist'  'alexis':1 'alrich':2
                                  'search_release'  '14':2,3 'intonation':5 'just':4 'tellus':1
                                     'search_rest'  '1986':4 'audio':1 'cassette':2 'didymus':5 'electronic':6 'experimental':7 'magazine':3 'oddness':8
                                    'search_combo'  '14':8C,9C '1986':15 'alexis':5B 'alrich':6B 'audio':12 'cassette':13 'didymus':1A,16 'electronic':17 'experimental':18 'intonation':11C 'just':10C 'magazine':14 'oddness':19 'set':2A 'tango':3A,4A 'tellus':7C
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628358183.9313607  (2021-08-07 19:43:03)
                             'size'  3489009