======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '254'
                                          'artist'  'UNKLE'
                                     'text_people'  ''
                                         'release'  'plastictango tango'
                                           'title'  'If You Find Earth Boring (Portishead Plays UNKLE Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '145.895'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'plastictango tango'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'If You Find Earth Boring (Portishead Plays UNKLE Mix)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'UNKLE'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '093,180'
'TXXX:Mp3gain_undo'                                 '+007,+007,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.357998'

========================== row from database ==========================
                                              'id'  243660
                                            'path'  /data/Music/Bulk/00localcharacter/plastictango/tango/tango 2.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  254
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  4068201
                                           'mtime'  1620528455
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 2 loc style milonga
                                      'tag_artist'  UNKLE
                                     'tag_release'  plastictango tango
                                       'tag_title'  If You Find Earth Boring (Portishead Plays UNKLE Mix)
                                             'bpm'  145.895
                                    'search_title'  'boring':5 'earth':4 'find':3 'if':1 'mix':10,11 'plays':8 'portishead':6,7 'unkle':9 'you':2
                                   'search_artist'  'unkle':1
                                  'search_release'  'plastictango':1 'tango':2
                                     'search_rest'  '2':1 'loc':2 'milonga':4 'style':3
                                    'search_combo'  '2':15 'boring':5A 'earth':4A 'find':3A 'if':1A 'loc':16 'milonga':18 'mix':10A,11A 'plastictango':13C 'plays':8A 'portishead':6A,7A 'style':17 'tango':14C 'unkle':9A,12B 'you':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528454.8563733  (2021-05-09 04:47:34)
                             'size'  4068201