======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '199'
                                          'artist'  'Morphine'
                                     'text_people'  ''
                                         'release'  'Like Swimming'
                                           'title'  "Eleven O'Clock"
                                           'quals'  ("['Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'jazz', 'blues', 'rock']"
                                     'discogstags'  "['hardcore', 'gabber', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '89.493'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Like Swimming'
'TBPM' (BPM (beats per minute))                     '89.493'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         "Eleven O'Clock"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Morphine'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hardcore', 'gabber', 'electronic']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'jazz', 'blues', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.47 dB'
'TXXX:replaygain_track_peak'                        '0.450782'

========================== row from database ==========================
                                              'id'  1504787
                                            'path'  /data/Music/Bulk/00poprockelectronic/Morphine/Morphine__Like Swimming__MBZ;#Morphine;#Like Swimming;#10;#Eleven O_Clock.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  199
                                           'genre'  rock-unsorted
                                        'filesize'  3994219
                                           'mtime'  1620391572
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Morphine__Like Swimming__MBZ;#Morphine;#Like Swimming;#10;#Eleven O_Clock rock unsorted
                                      'tag_artist'  Morphine
                                     'tag_release'  Like Swimming
                                       'tag_title'  Eleven O'Clock
                                             'bpm'  89.493
                                    'search_title'  'clock':3 'eleven':1 'o':2 'oclock':4
                                   'search_artist'  'morphine':1
                                  'search_release'  'like':1 'swimming':2
                                     'search_rest'  '00poprockelectronic':1 '10':13,16 'clock':19 'eleven':14,17 'like':3,7,11 'mbz':5,9 'morphine':2,6,10 'o':18 'rock':20 'swimming':4,8,12,15 'unsorted':21
                                    'search_combo'  '00poprockelectronic':8 '10':20,23 'clock':3A,26 'eleven':1A,21,24 'like':6C,10,14,18 'mbz':12,16 'morphine':5B,9,13,17 'o':2A,25 'oclock':4A 'rock':27 'swimming':7C,11,15,19,22 'unsorted':28
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'jazz', 'blues', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['hardcore', 'gabber', 'electronic']

============================== file details ==============================
                                           'mtime'  1620391571.932675  (2021-05-07 14:46:11)
                             'size'  3994219