======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '401'
                                          'artist'  'Die Vögel'
                                     'text_people'  ''
                                         'release'  'Blaue Moschee'
                                           'title'  'Empire'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'minimal techno', 'pampa', 'electronic', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '126.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blaue Moschee'
'TBPM' (BPM (beats per minute))                     '126.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'Lame 3.98'
'TIT2' (Title/songname/content description)         'Empire'
'TKEY' (Initial key)                                '6A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Die Vögel'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['german', 'minimal techno', 'pampa', 'electronic', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.27 dB'
'TXXX:replaygain_track_peak'                        '0.643488'

========================== row from database ==========================
                                              'id'  771302
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/03-die_voegel--empire-dh.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  401
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  16049548
                                           'mtime'  1620536547
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs 03 die_voegel empire dh electronic th techno minimal or deephouse
                                      'tag_artist'  Die Vögel
                                     'tag_release'  Blaue Moschee
                                       'tag_title'  Empire
                                             'bpm'  126.2
                                    'search_title'  'empire':1
                                   'search_artist'  'die':1 'vogel':2,3
                                  'search_release'  'blaue':1 'moschee':2
                                     'search_rest'  'deephouse':11 'dh':5 'die':2 'electronic':6 'elektronikzeugs':1 'empire':4 'minimal':9 'or':10 'techno':8 'th':7 'voegel':3
                                    'search_combo'  'blaue':5C 'deephouse':17 'dh':11 'die':2B,8 'electronic':12 'elektronikzeugs':7 'empire':1A,10 'minimal':15 'moschee':6C 'or':16 'techno':14 'th':13 'voegel':9 'vogel':3B,4B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'minimal techno', 'pampa', 'electronic', 'minimal']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620536547.3668227  (2021-05-09 07:02:27)
                             'size'  16049548