======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '157'
                                          'artist'  'Brenda Hutchinson & Gerald Lindhal'
                                     'text_people'  ''
                                         'release'  'Tellus #16: Tango'
                                           'title'  'Slow Death on a Thorny Rose'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-1', 'q-drums-2', 'q-other-4', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['songs about death', 'songs about flowers']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '90.5'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tellus #16: Tango'
'TBPM' (BPM (beats per minute))                     '90.5'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Slow Death on a Thorny Rose'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Brenda Hutchinson & Gerald Lindhal'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['songs about death', 'songs about flowers']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.64 dB'
'TXXX:replaygain_track_peak'                        '0.488575'

========================== row from database ==========================
                                              'id'  405711
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1986 - Tellus #16 - Tango/06 - Brenda Hutchinson & Gerald Lindhal - Slow Death on a Thorny Rose.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  157
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  4095912
                                           'mtime'  1636914620
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1986 06 electronic experimental oddness
                                      'tag_artist'  Brenda Hutchinson & Gerald Lindhal
                                     'tag_release'  Tellus #16: Tango
                                       'tag_title'  Slow Death on a Thorny Rose
                                             'bpm'  90.5
                                    'search_title'  'a':4 'death':2 'on':3 'rose':6 'slow':1 'thorny':5
                                   'search_artist'  'brenda':1 'gerald':3 'hutchinson':2 'lindhal':4
                                  'search_release'  '16':2,3 'tango':4 'tellus':1
                                     'search_rest'  '1986':4 'audio':1 'cassette':2 'electronic':5 'experimental':6 'magazine':3 'oddness':7
                                    'search_combo'  '16':12C,13C '1986':18 'a':4A 'audio':15 'brenda':7B 'cassette':16 'death':2A 'electronic':19 'experimental':20 'gerald':9B 'hutchinson':8B 'lindhal':10B 'magazine':17 'oddness':21 'on':3A 'rose':6A 'slow':1A 'tango':14C 'tellus':11C 'thorny':5A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['songs about death', 'songs about flowers']
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914619.53451  (2021-11-14 19:30:19)
                             'size'  4095912