======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '846'
                                          'artist'  'zzzzra'
                                     'text_people'  ''
                                         'release'  'Back on Earth'
                                           'title'  'sub.rec.cd1 - Martin Nonstatic - Back on Earth (CD)-134388019'
                                           '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-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', "
 "'q-vocals-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '142.1'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Back on Earth'
'TBPM' (BPM (beats per minute))                     '142.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'sub.rec.cd1 - Martin Nonstatic - Back on Earth (CD)-134388019'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'zzzzra'
'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:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.00 dB'
'TXXX:replaygain_track_peak'                        '0.819562'

========================== row from database ==========================
                                              'id'  857578
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/zzzzra/sub.rec.cd1 - Martin Nonstatic - Back on Earth (CD)-134388019.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  846
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  34265984
                                           'mtime'  1621085104
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud electronic techno minimal or deephouse
                                      'tag_artist'  zzzzra
                                     'tag_release'  Back on Earth
                                       'tag_title'  sub.rec.cd1 - Martin Nonstatic - Back on Earth (CD)-134388019
                                             'bpm'  142.1
                                    'search_title'  '134388019':11 'back':7 'cd':10 'cd1':3 'cd134388019':12 'earth':9 'martin':5 'nonstatic':6 'on':8 'rec':2 'sub':1 'subreccd1':4
                                   'search_artist'  'zzzzra':1
                                  'search_release'  'back':1 'earth':3 'on':2
                                     'search_rest'  'deephouse':6 'electronic':2 'minimal':4 'or':5 'soundcloud':1 'techno':3
                                    'search_combo'  '134388019':11A 'back':7A,14C 'cd':10A 'cd1':3A 'cd134388019':12A 'deephouse':22 'earth':9A,16C 'electronic':18 'martin':5A 'minimal':20 'nonstatic':6A 'on':8A,15C 'or':21 'rec':2A 'soundcloud':17 'sub':1A 'subreccd1':4A 'techno':19 'zzzzra':13B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           '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-3', 'q-syn-4', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'techno', 'dub techno', 'minimal', 'ambient']
                                        'tag_date'  2014
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621085104.3154387  (2021-05-15 15:25:04)
                             'size'  34265984