======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '630'
                                          'artist'  'Nachtkind'
                                     'text_people'  ''
                                         'release'  'maleta  acid rave'
                                           'title'  'Rheinland (Love The Acid) (Original Mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'Q-GRIT-3', 'q-bass-1', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', 'Q-MIXBEAT-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '121.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'maleta  acid rave'
'TBPM' (BPM (beats per minute))                     '121.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Rheinland (Love The Acid) (Original Mix)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nachtkind'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.28 dB'
'TXXX:replaygain_track_peak'                        '0.504545'

========================== row from database ==========================
                                              'id'  1484806
                                            'path'  /data/Music/Bulk/00poprockelectronic/maleta__ acid rave/nachtkind - rheinland (love the acid) (original mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  630
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  25226928
                                           'mtime'  1620573798
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic maleta__ nachtkind rheinland (love the acid) (original mix) electronic th techno
                                      'tag_artist'  Nachtkind
                                     'tag_release'  maleta  acid rave
                                       'tag_title'  Rheinland (Love The Acid) (Original Mix)
                                             'bpm'  121.9
                                    'search_title'  'acid':5,6 'love':2,3 'mix':9,10 'original':7,8 'rheinland':1 'the':4
                                   'search_artist'  'nachtkind':1
                                  'search_release'  'acid':2 'maleta':1 'rave':3
                                     'search_rest'  '00poprockelectronic':1 'acid':8,9 'electronic':14 'love':5,6 'maleta':2 'mix':12,13 'nachtkind':3 'original':10,11 'rheinland':4 'techno':16 'th':15 'the':7
                                    'search_combo'  '00poprockelectronic':15 'acid':5A,6A,13C,22,23 'electronic':28 'love':2A,3A,19,20 'maleta':12C,16 'mix':9A,10A,26,27 'nachtkind':11B,17 'original':7A,8A,24,25 'rave':14C 'rheinland':1A,18 'techno':30 'th':29 'the':4A,21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-4', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573798.158662  (2021-05-09 17:23:18)
                             'size'  25226928