======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '392'
                                          'artist'  'Ulrich Schnauss'
                                     'text_people'  ''
                                         'release'  'Far Away Trains Passing By [Bonus Disc]'
                                           'title'  'Crazy for You'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '102.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Far Away Trains Passing By [Bonus Disc]'
'TBPM' (BPM (beats per minute))                     '102.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Crazy for You'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ulrich Schnauss'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
'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'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.94 dB'
'TXXX:replaygain_track_peak'                        '0.486256'

========================== row from database ==========================
                                              'id'  400581
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Ulrich Schnauss/Far Away Trains Passing By/CD2/05 - Crazy For You.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  392
                                           'genre'  electronic
                                        'filesize'  12547968
                                           'mtime'  1636912807
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm CD2 05 For electronic
                                      'tag_artist'  Ulrich Schnauss
                                     'tag_release'  Far Away Trains Passing By [Bonus Disc]
                                       'tag_title'  Crazy for You
                                             'bpm'  102.0
                                    'search_title'  'crazy':1 'for':2 'you':3
                                   'search_artist'  'schnauss':2 'ulrich':1
                                  'search_release'  'away':2 'bonus':6,7 'by':5 'disc':8,9 'far':1 'passing':4 'trains':3
                                     'search_rest'  'cd2':1 'electronic':3 'for':2
                                    'search_combo'  'away':7C 'bonus':11C,12C 'by':10C 'cd2':15 'crazy':1A 'disc':13C,14C 'electronic':17 'far':6C 'for':2A,16 'passing':9C 'schnauss':5B 'trains':8C 'ulrich':4B 'you':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912806.5686152  (2021-11-14 19:00:06)
                             'size'  12547968