======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '215'
                                          'artist'  'Counting Crows'
                                     'text_people'  ''
                                         'release'  'Rarities 4'
                                           'title'  'How Can I Live Without You Shi'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', "
 "'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '85.924'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rarities 4'
'TBPM' (BPM (beats per minute))                     '85.924'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'How Can I Live Without You Shi'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Counting Crows'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.55 dB'
'TXXX:replaygain_track_peak'                        '0.638091'

========================== row from database ==========================
                                              'id'  1508789
                                            'path'  /data/Music/Bulk/00poprockelectronic/Counting Crows/MBZ;#Counting Crows;#Rarities 4;#06;#How Can I live without You Shim Sham _00.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  215
                                           'genre'  rock-unsorted
                                        'filesize'  4309379
                                           'mtime'  1620389496
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Counting Crows;#Rarities 4;#06;#How live without Shim Sham _00 rock unsorted
                                      'tag_artist'  Counting Crows
                                     'tag_release'  Rarities 4
                                       'tag_title'  How Can I Live Without You Shi
                                             'bpm'  85.924
                                    'search_title'  'can':2 'how':1 'i':3 'live':4 'shi':7 'without':5 'you':6
                                   'search_artist'  'counting':1 'crows':2
                                  'search_release'  '4':2 'rarities':1
                                     'search_rest'  '00':20 '00poprockelectronic':1 '06':11,14 '4':10,13 'counting':3,5 'crows':6,8 'how':12,15 'live':16 'mbz':2,4 'rarities':7,9 'rock':21 'sham':19 'shim':18 'unsorted':22 'without':17
                                    'search_combo'  '00':31 '00poprockelectronic':12 '06':22,25 '4':11C,21,24 'can':2A 'counting':8B,14,16 'crows':9B,17,19 'how':1A,23,26 'i':3A 'live':4A,27 'mbz':13,15 'rarities':10C,18,20 'rock':32 'sham':30 'shi':7A 'shim':29 'unsorted':33 'without':5A,28 'you':6A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'pop', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620389495.879261  (2021-05-07 14:11:35)
                             'size'  4309379