======================== unified (from filesystem) ========================
                                         'bitrate'  '249.736'
                                        'duration'  '418'
                                          'artist'  'Traumprinz'
                                     'text_people'  ''
                                         'release'  'Futur II'
                                           'title'  'Shall I Say It Again'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['house', 'techno', 'deep house', 'electronic', 'dub techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '2'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '122.882'
                                             'key'  '9B'
                                        'acoustid'  'f5b3034e-26e5-44c0-9a89-cf504bf2bf8a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Futur II'
'TBPM' (BPM (beats per minute))                     '122.882'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDOR' (Original release time)                      '2012'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Shall I Say It Again'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Traumprinz'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '3/6'
'TPUB' (Publisher)                                  'Giegling'
'TRCK' (Track number/Position in set)               '2/2'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Traumprinz'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 64bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:Acoustid Id'                                  'f5b3034e-26e5-44c0-9a89-cf504bf2bf8a'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '66e74f35-4f80-462f-b9cf-5d2bb768725b'
'TXXX:MusicBrainz Album Type'                       'other'
'TXXX:MusicBrainz Artist Id'                        'da44a210-9995-4272-83c5-688ecf0fbf4f'
'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-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['house', 'techno', 'deep house', 'electronic', 'dub techno']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.51 dB'
'TXXX:replaygain_track_peak'                        '0.692602'

========================== row from database ==========================
                                              'id'  1345337
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/giegling/Various ‎– Futur II [ Vinyl] (V0)/06 - Shall I Say It Again.mp3
                                         'working'  None
                                         'bitrate'  249
                                    'duration_sec'  418
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  13166608
                                           'mtime'  1621085224
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats giegling Various ‎– [ Vinyl] (V0) 06 electronic th techno minimal or deephouse
                                      'tag_artist'  Traumprinz
                                     'tag_release'  Futur II
                                       'tag_title'  Shall I Say It Again
                                             'bpm'  122.882
                                    'search_title'  'again':5 'i':2 'it':4 'say':3 'shall':1
                                   'search_artist'  'traumprinz':1
                                  'search_release'  'futur':1 'ii':2
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'deephouse':17 'electronic':12 'giegling':6 'harder':4 'house':3 'minimal':15 'or':16 'techno':14 'th':13 'v0':10,11 'various':7 'vinyl':8,9
                                    'search_combo'  '00poprockelectronic':9 '00techno':10 'again':5A 'beats':13 'deephouse':25 'electronic':20 'futur':7C 'giegling':14 'harder':12 'house':11 'i':2A 'ii':8C 'it':4A 'minimal':23 'or':24 'say':3A 'shall':1A 'techno':22 'th':21 'traumprinz':6B 'v0':18,19 'various':15 'vinyl':16,17
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['house', 'techno', 'deep house', 'electronic', 'dub techno']
                                        'tag_date'  2012
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085224.1181056  (2021-05-15 15:27:04)
                             'size'  13166608